67431

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1$

素因数の和:55

約数の個数: 24

約数和(自身を含む): 117120

約数和(自身を除く): 49689

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 169, 247, 273, 399, 507, 741, 1183, 1729, 3211, 3549, 5187, 9633, 22477, 67431]

約数ペア:

[(1, 67431), (3, 22477), (7, 9633), (13, 5187), (19, 3549), (21, 3211), (39, 1729), (57, 1183), (91, 741), (133, 507), (169, 399), (247, 273)]