21576775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2531}}^1$

素因数の和:2583

約数の個数: 24

約数和(自身を含む): 30140928

約数和(自身を除く): 8564153

約数列:

[1, 5, 11, 25, 31, 55, 155, 275, 341, 775, 1705, 2531, 8525, 12655, 27841, 63275, 78461, 139205, 392305, 696025, 863071, 1961525, 4315355, 21576775]

約数ペア:

[(1, 21576775), (5, 4315355), (11, 1961525), (25, 863071), (31, 696025), (55, 392305), (155, 139205), (275, 78461), (341, 63275), (775, 27841), (1705, 12655), (2531, 8525)]