21811658

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{52181}}^1$

素因数の和:52213

約数の個数: 16

約数和(自身を含む): 37571040

約数和(自身を除く): 15759382

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 52181, 104362, 573991, 991439, 1147982, 1982878, 10905829, 21811658]

約数ペア:

[(1, 21811658), (2, 10905829), (11, 1982878), (19, 1147982), (22, 991439), (38, 573991), (209, 104362), (418, 52181)]