21660056

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{2437}}^1$

素因数の和:2555

約数の個数: 32

約数和(自身を含む): 44761680

約数和(自身を除く): 23101624

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 101, 202, 404, 808, 1111, 2222, 2437, 4444, 4874, 8888, 9748, 19496, 26807, 53614, 107228, 214456, 246137, 492274, 984548, 1969096, 2707507, 5415014, 10830028, 21660056]

約数ペア:

[(1, 21660056), (2, 10830028), (4, 5415014), (8, 2707507), (11, 1969096), (22, 984548), (44, 492274), (88, 246137), (101, 214456), (202, 107228), (404, 53614), (808, 26807), (1111, 19496), (2222, 9748), (2437, 8888), (4444, 4874)]