21033753

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{179}}^1$

素因数の和:349

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 10899687

約数列:

[1, 3, 13, 23, 39, 69, 131, 179, 299, 393, 537, 897, 1703, 2327, 3013, 4117, 5109, 6981, 9039, 12351, 23449, 39169, 53521, 70347, 117507, 160563, 304837, 539327, 914511, 1617981, 7011251, 21033753]

約数ペア:

[(1, 21033753), (3, 7011251), (13, 1617981), (23, 914511), (39, 539327), (69, 304837), (131, 160563), (179, 117507), (299, 70347), (393, 53521), (537, 39169), (897, 23449), (1703, 12351), (2327, 9039), (3013, 6981), (4117, 5109)]