21743590

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{2221}}^1$

素因数の和:2328

約数の個数: 32

約数和(自身を含む): 43195680

約数和(自身を除く): 21452090

約数列:

[1, 2, 5, 10, 11, 22, 55, 89, 110, 178, 445, 890, 979, 1958, 2221, 4442, 4895, 9790, 11105, 22210, 24431, 48862, 122155, 197669, 244310, 395338, 988345, 1976690, 2174359, 4348718, 10871795, 21743590]

約数ペア:

[(1, 21743590), (2, 10871795), (5, 4348718), (10, 2174359), (11, 1976690), (22, 988345), (55, 395338), (89, 244310), (110, 197669), (178, 122155), (445, 48862), (890, 24431), (979, 22210), (1958, 11105), (2221, 9790), (4442, 4895)]