21018320

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{11423}}^1$

素因数の和:11459

約数の個数: 40

約数和(自身を含む): 50996736

約数和(自身を除く): 29978416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 11423, 22846, 45692, 57115, 91384, 114230, 182768, 228460, 262729, 456920, 525458, 913840, 1050916, 1313645, 2101832, 2627290, 4203664, 5254580, 10509160, 21018320]

約数ペア:

[(1, 21018320), (2, 10509160), (4, 5254580), (5, 4203664), (8, 2627290), (10, 2101832), (16, 1313645), (20, 1050916), (23, 913840), (40, 525458), (46, 456920), (80, 262729), (92, 228460), (115, 182768), (184, 114230), (230, 91384), (368, 57115), (460, 45692), (920, 22846), (1840, 11423)]