21787186785

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{13}}^2\times {\mathrm{25057}}^1$

素因数の和:25112

約数の個数: 96

約数和(自身を含む): 44021894400

約数和(自身を除く): 22234707615

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 49, 65, 91, 105, 147, 169, 195, 245, 273, 343, 455, 507, 637, 735, 845, 1029, 1183, 1365, 1715, 1911, 2535, 3185, 3549, 4459, 5145, 5915, 8281, 9555, 13377, 17745, 22295, 24843, 25057, 41405, 57967, 66885, 75171, 124215, 125285, 173901, 175399, 289835, 325741, 375855, 526197, 869505, 876995, 977223, 1227793, 1628705, 2280187, 2630985, 3683379, 4234633, 4886115, 6138965, 6840561, 8594551, 11400935, 12703899, 15961309, 18416895, 21173165, 25783653, 29642431, 34202805, 42972755, 47883927, 63519495, 79806545, 88927293, 111729163, 128918265, 148212155, 207497017, 239419635, 335187489, 444636465, 558645815, 622491051, 1037485085, 1452479119, 1675937445, 3112455255, 4357437357, 7262395595, 21787186785]

約数ペア:

[(1, 21787186785), (3, 7262395595), (5, 4357437357), (7, 3112455255), (13, 1675937445), (15, 1452479119), (21, 1037485085), (35, 622491051), (39, 558645815), (49, 444636465), (65, 335187489), (91, 239419635), (105, 207497017), (147, 148212155), (169, 128918265), (195, 111729163), (245, 88927293), (273, 79806545), (343, 63519495), (455, 47883927), (507, 42972755), (637, 34202805), (735, 29642431), (845, 25783653), (1029, 21173165), (1183, 18416895), (1365, 15961309), (1715, 12703899), (1911, 11400935), (2535, 8594551), (3185, 6840561), (3549, 6138965), (4459, 4886115), (5145, 4234633), (5915, 3683379), (8281, 2630985), (9555, 2280187), (13377, 1628705), (17745, 1227793), (22295, 977223), (24843, 876995), (25057, 869505), (41405, 526197), (57967, 375855), (66885, 325741), (75171, 289835), (124215, 175399), (125285, 173901)]