21179665

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{457}}^1$

素因数の和:529

約数の個数: 32

約数和(自身を含む): 29546496

約数和(自身を除く): 8366831

約数列:

[1, 5, 13, 23, 31, 65, 115, 155, 299, 403, 457, 713, 1495, 2015, 2285, 3565, 5941, 9269, 10511, 14167, 29705, 46345, 52555, 70835, 136643, 184171, 325841, 683215, 920855, 1629205, 4235933, 21179665]

約数ペア:

[(1, 21179665), (5, 4235933), (13, 1629205), (23, 920855), (31, 683215), (65, 325841), (115, 184171), (155, 136643), (299, 70835), (403, 52555), (457, 46345), (713, 29705), (1495, 14167), (2015, 10511), (2285, 9269), (3565, 5941)]