20211204

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:217

約数の個数: 96

約数和(自身を含む): 54641664

約数和(自身を除く): 34430460

約数列:

[1, 2, 3, 4, 6, 12, 13, 23, 26, 39, 43, 46, 52, 69, 78, 86, 92, 129, 131, 138, 156, 172, 258, 262, 276, 299, 393, 516, 524, 559, 598, 786, 897, 989, 1118, 1196, 1572, 1677, 1703, 1794, 1978, 2236, 2967, 3013, 3354, 3406, 3588, 3956, 5109, 5633, 5934, 6026, 6708, 6812, 9039, 10218, 11266, 11868, 12052, 12857, 16899, 18078, 20436, 22532, 25714, 33798, 36156, 38571, 39169, 51428, 67596, 73229, 77142, 78338, 117507, 129559, 146458, 154284, 156676, 219687, 235014, 259118, 292916, 388677, 439374, 470028, 518236, 777354, 878748, 1554708, 1684267, 3368534, 5052801, 6737068, 10105602, 20211204]

約数ペア:

[(1, 20211204), (2, 10105602), (3, 6737068), (4, 5052801), (6, 3368534), (12, 1684267), (13, 1554708), (23, 878748), (26, 777354), (39, 518236), (43, 470028), (46, 439374), (52, 388677), (69, 292916), (78, 259118), (86, 235014), (92, 219687), (129, 156676), (131, 154284), (138, 146458), (156, 129559), (172, 117507), (258, 78338), (262, 77142), (276, 73229), (299, 67596), (393, 51428), (516, 39169), (524, 38571), (559, 36156), (598, 33798), (786, 25714), (897, 22532), (989, 20436), (1118, 18078), (1196, 16899), (1572, 12857), (1677, 12052), (1703, 11868), (1794, 11266), (1978, 10218), (2236, 9039), (2967, 6812), (3013, 6708), (3354, 6026), (3406, 5934), (3588, 5633), (3956, 5109)]