21657973

素因数分解:

${\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:348

約数の個数: 16

約数和(自身を含む): 23379840

約数和(自身を除く): 1721867

約数列:

[1, 23, 53, 109, 163, 1219, 2507, 3749, 5777, 8639, 17767, 132871, 198697, 408641, 941651, 21657973]

約数ペア:

[(1, 21657973), (23, 941651), (53, 408641), (109, 198697), (163, 132871), (1219, 17767), (2507, 8639), (3749, 5777)]