217418929

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{1787}}^1$

素因数の和:2005

約数の個数: 24

約数和(自身を含む): 273950208

約数和(自身を除く): 56531279

約数列:

[1, 7, 13, 49, 91, 191, 637, 1337, 1787, 2483, 9359, 12509, 17381, 23231, 87563, 121667, 162617, 341317, 1138319, 2389219, 4437121, 16724533, 31059847, 217418929]

約数ペア:

[(1, 217418929), (7, 31059847), (13, 16724533), (49, 4437121), (91, 2389219), (191, 1138319), (637, 341317), (1337, 162617), (1787, 121667), (2483, 87563), (9359, 23231), (12509, 17381)]