19881356

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{15581}}^1$

素因数の和:15625

約数の個数: 24

約数和(自身を含む): 39266640

約数和(自身を除く): 19385284

約数列:

[1, 2, 4, 11, 22, 29, 44, 58, 116, 319, 638, 1276, 15581, 31162, 62324, 171391, 342782, 451849, 685564, 903698, 1807396, 4970339, 9940678, 19881356]

約数ペア:

[(1, 19881356), (2, 9940678), (4, 4970339), (11, 1807396), (22, 903698), (29, 685564), (44, 451849), (58, 342782), (116, 171391), (319, 62324), (638, 31162), (1276, 15581)]