21900502

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1031}}^1$

素因数の和:1108

約数の個数: 32

約数和(自身を含む): 38142720

約数和(自身を除く): 16242218

約数列:

[1, 2, 13, 19, 26, 38, 43, 86, 247, 494, 559, 817, 1031, 1118, 1634, 2062, 10621, 13403, 19589, 21242, 26806, 39178, 44333, 88666, 254657, 509314, 576329, 842327, 1152658, 1684654, 10950251, 21900502]

約数ペア:

[(1, 21900502), (2, 10950251), (13, 1684654), (19, 1152658), (26, 842327), (38, 576329), (43, 509314), (86, 254657), (247, 88666), (494, 44333), (559, 39178), (817, 26806), (1031, 21242), (1118, 19589), (1634, 13403), (2062, 10621)]