21512788

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{25733}}^1$

素因数の和:25767

約数の個数: 24

約数和(自身を含む): 43233120

約数和(自身を除く): 21720332

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 418, 836, 25733, 51466, 102932, 283063, 488927, 566126, 977854, 1132252, 1955708, 5378197, 10756394, 21512788]

約数ペア:

[(1, 21512788), (2, 10756394), (4, 5378197), (11, 1955708), (19, 1132252), (22, 977854), (38, 566126), (44, 488927), (76, 283063), (209, 102932), (418, 51466), (836, 25733)]