20197664

素因数分解:

$2^5\times {\mathrm{53}}^1\times {\mathrm{11909}}^1$

素因数の和:11972

約数の個数: 24

約数和(自身を含む): 40517820

約数和(自身を除く): 20320156

約数列:

[1, 2, 4, 8, 16, 32, 53, 106, 212, 424, 848, 1696, 11909, 23818, 47636, 95272, 190544, 381088, 631177, 1262354, 2524708, 5049416, 10098832, 20197664]

約数ペア:

[(1, 20197664), (2, 10098832), (4, 5049416), (8, 2524708), (16, 1262354), (32, 631177), (53, 381088), (106, 190544), (212, 95272), (424, 47636), (848, 23818), (1696, 11909)]