81421718399

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{971}}^1\times {\mathrm{30637}}^1$

素因数の和:31655

約数の個数: 32

約数和(自身を含む): 102920150016

約数和(自身を除く): 21498431617

約数列:

[1, 7, 17, 23, 119, 161, 391, 971, 2737, 6797, 16507, 22333, 30637, 115549, 156331, 214459, 379661, 520829, 704651, 2657627, 3645803, 4932557, 11979067, 29748527, 83853469, 208239689, 505724959, 684216121, 3540074713, 4789512847, 11631674057, 81421718399]

約数ペア:

[(1, 81421718399), (7, 11631674057), (17, 4789512847), (23, 3540074713), (119, 684216121), (161, 505724959), (391, 208239689), (971, 83853469), (2737, 29748527), (6797, 11979067), (16507, 4932557), (22333, 3645803), (30637, 2657627), (115549, 704651), (156331, 520829), (214459, 379661)]