2021106969

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{251}}^1$

素因数の和:352

約数の個数: 108

約数和(自身を含む): 3708497520

約数和(自身を除く): 1687390551

約数列:

[1, 3, 7, 9, 19, 21, 31, 49, 57, 63, 93, 133, 147, 171, 217, 251, 279, 399, 441, 589, 651, 753, 931, 961, 1197, 1519, 1757, 1767, 1953, 2259, 2793, 2883, 4123, 4557, 4769, 5271, 5301, 6727, 7781, 8379, 8649, 12299, 12369, 13671, 14307, 15813, 18259, 20181, 23343, 28861, 33383, 36897, 37107, 42921, 47089, 54467, 54777, 60543, 70029, 86583, 100149, 110691, 127813, 141267, 147839, 163401, 164331, 233681, 241211, 259749, 300447, 381269, 383439, 423801, 443517, 490203, 701043, 723633, 894691, 1034873, 1143807, 1150317, 1330551, 1688477, 2103129, 2170899, 2684073, 3104619, 3431421, 4583009, 5065431, 7244111, 8052219, 9313857, 11819339, 13749027, 15196293, 21732333, 32081063, 35458017, 41247081, 65196999, 96243189, 106374051, 224567441, 288729567, 673702323, 2021106969]

約数ペア:

[(1, 2021106969), (3, 673702323), (7, 288729567), (9, 224567441), (19, 106374051), (21, 96243189), (31, 65196999), (49, 41247081), (57, 35458017), (63, 32081063), (93, 21732333), (133, 15196293), (147, 13749027), (171, 11819339), (217, 9313857), (251, 8052219), (279, 7244111), (399, 5065431), (441, 4583009), (589, 3431421), (651, 3104619), (753, 2684073), (931, 2170899), (961, 2103129), (1197, 1688477), (1519, 1330551), (1757, 1150317), (1767, 1143807), (1953, 1034873), (2259, 894691), (2793, 723633), (2883, 701043), (4123, 490203), (4557, 443517), (4769, 423801), (5271, 383439), (5301, 381269), (6727, 300447), (7781, 259749), (8379, 241211), (8649, 233681), (12299, 164331), (12369, 163401), (13671, 147839), (14307, 141267), (15813, 127813), (18259, 110691), (20181, 100149), (23343, 86583), (28861, 70029), (33383, 60543), (36897, 54777), (37107, 54467), (42921, 47089)]