19438519

素因数分解:

${\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{199}}^1$

素因数の和:390

約数の個数: 16

約数和(自身を含む): 21196800

約数和(自身を除く): 1758281

約数列:

[1, 23, 31, 137, 199, 713, 3151, 4247, 4577, 6169, 27263, 97681, 141887, 627049, 845153, 19438519]

約数ペア:

[(1, 19438519), (23, 845153), (31, 627049), (137, 141887), (199, 97681), (713, 27263), (3151, 6169), (4247, 4577)]