21031720190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{4372499}}^1$

素因数の和:4372556

約数の個数: 32

約数和(自身を含む): 41871060000

約数和(自身を除く): 20839339810

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 481, 962, 2405, 4810, 4372499, 8744998, 21862495, 43724990, 56842487, 113684974, 161782463, 284212435, 323564926, 568424870, 808912315, 1617824630, 2103172019, 4206344038, 10515860095, 21031720190]

約数ペア:

[(1, 21031720190), (2, 10515860095), (5, 4206344038), (10, 2103172019), (13, 1617824630), (26, 808912315), (37, 568424870), (65, 323564926), (74, 284212435), (130, 161782463), (185, 113684974), (370, 56842487), (481, 43724990), (962, 21862495), (2405, 8744998), (4810, 4372499)]