664449019

素因数分解:

${\mathrm{13}}^2\times {\mathrm{19}}^2\times {\mathrm{10891}}^1$

素因数の和:10955

約数の個数: 18

約数和(自身を含む): 759422916

約数和(自身を除く): 94973897

約数列:

[1, 13, 19, 169, 247, 361, 3211, 4693, 10891, 61009, 141583, 206929, 1840579, 2690077, 3931651, 34971001, 51111463, 664449019]

約数ペア:

[(1, 664449019), (13, 51111463), (19, 34971001), (169, 3931651), (247, 2690077), (361, 1840579), (3211, 206929), (4693, 141583), (10891, 61009)]