21996309

素因数分解:

$3^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1\times {\mathrm{491}}^1$

素因数の和:740

約数の個数: 16

約数和(自身を含む): 29874240

約数和(自身を除く): 7877931

約数列:

[1, 3, 109, 137, 327, 411, 491, 1473, 14933, 44799, 53519, 67267, 160557, 201801, 7332103, 21996309]

約数ペア:

[(1, 21996309), (3, 7332103), (109, 201801), (137, 160557), (327, 67267), (411, 53519), (491, 44799), (1473, 14933)]