21031755381

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{947}}^1$

素因数の和:1133

約数の個数: 160

約数和(自身を含む): 40700233728

約数和(自身を除く): 19668478347

約数列:

[1, 3, 7, 9, 13, 21, 23, 27, 39, 63, 69, 81, 91, 117, 131, 161, 189, 207, 273, 299, 351, 393, 483, 567, 621, 819, 897, 917, 947, 1053, 1179, 1449, 1703, 1863, 2093, 2457, 2691, 2751, 2841, 3013, 3537, 4347, 5109, 6279, 6629, 7371, 8073, 8253, 8523, 9039, 10611, 11921, 12311, 13041, 15327, 18837, 19887, 21091, 21781, 24219, 24759, 25569, 27117, 35763, 36933, 39169, 45981, 56511, 59661, 63273, 65343, 74277, 76707, 81351, 86177, 107289, 110799, 117507, 124057, 137943, 152467, 169533, 178983, 189819, 196029, 244053, 258531, 274183, 283153, 321867, 332397, 352521, 372171, 457401, 536949, 569457, 588087, 775593, 822549, 849459, 868399, 965601, 997191, 1057563, 1116513, 1372203, 1612741, 1708371, 1764261, 1982071, 2326779, 2467647, 2548377, 2605197, 2853311, 3172689, 3349539, 4116609, 4838223, 5946213, 6980337, 7402941, 7645131, 7815591, 8559933, 10048617, 11289187, 12349827, 14514669, 17838639, 19973177, 22208823, 22935393, 23446773, 25679799, 33867561, 37093043, 43544007, 53515917, 59919531, 70340319, 77039397, 101602683, 111279129, 130632021, 160547751, 179758593, 231118191, 259651301, 304808049, 333837387, 539275779, 778953903, 914424147, 1001512161, 1617827337, 2336861709, 3004536483, 7010585127, 21031755381]

約数ペア:

[(1, 21031755381), (3, 7010585127), (7, 3004536483), (9, 2336861709), (13, 1617827337), (21, 1001512161), (23, 914424147), (27, 778953903), (39, 539275779), (63, 333837387), (69, 304808049), (81, 259651301), (91, 231118191), (117, 179758593), (131, 160547751), (161, 130632021), (189, 111279129), (207, 101602683), (273, 77039397), (299, 70340319), (351, 59919531), (393, 53515917), (483, 43544007), (567, 37093043), (621, 33867561), (819, 25679799), (897, 23446773), (917, 22935393), (947, 22208823), (1053, 19973177), (1179, 17838639), (1449, 14514669), (1703, 12349827), (1863, 11289187), (2093, 10048617), (2457, 8559933), (2691, 7815591), (2751, 7645131), (2841, 7402941), (3013, 6980337), (3537, 5946213), (4347, 4838223), (5109, 4116609), (6279, 3349539), (6629, 3172689), (7371, 2853311), (8073, 2605197), (8253, 2548377), (8523, 2467647), (9039, 2326779), (10611, 1982071), (11921, 1764261), (12311, 1708371), (13041, 1612741), (15327, 1372203), (18837, 1116513), (19887, 1057563), (21091, 997191), (21781, 965601), (24219, 868399), (24759, 849459), (25569, 822549), (27117, 775593), (35763, 588087), (36933, 569457), (39169, 536949), (45981, 457401), (56511, 372171), (59661, 352521), (63273, 332397), (65343, 321867), (74277, 283153), (76707, 274183), (81351, 258531), (86177, 244053), (107289, 196029), (110799, 189819), (117507, 178983), (124057, 169533), (137943, 152467)]