13990431

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{7321}}^1$

素因数の和:7351

約数の個数: 24

約数和(自身を含む): 23371824

約数和(自身を除く): 9381393

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 7321, 21963, 51247, 95173, 153741, 285519, 358729, 666211, 1076187, 1998633, 4663477, 13990431]

約数ペア:

[(1, 13990431), (3, 4663477), (7, 1998633), (13, 1076187), (21, 666211), (39, 358729), (49, 285519), (91, 153741), (147, 95173), (273, 51247), (637, 21963), (1911, 7321)]