20921081495

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1\times {\mathrm{535957}}^1$

素因数の和:536210

約数の個数: 16

約数和(自身を含む): 25906065888

約数和(自身を除く): 4984984393

約数列:

[1, 5, 37, 185, 211, 1055, 7807, 39035, 535957, 2679785, 19830409, 99152045, 113086927, 565434635, 4184216299, 20921081495]

約数ペア:

[(1, 20921081495), (5, 4184216299), (37, 565434635), (185, 113086927), (211, 99152045), (1055, 19830409), (7807, 2679785), (39035, 535957)]