389655

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{1237}}^1$

素因数の和:1255

約数の個数: 24

約数和(自身を含む): 772512

約数和(自身を除く): 382857

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 1237, 3711, 6185, 8659, 11133, 18555, 25977, 43295, 55665, 77931, 129885, 389655]

約数ペア:

[(1, 389655), (3, 129885), (5, 77931), (7, 55665), (9, 43295), (15, 25977), (21, 18555), (35, 11133), (45, 8659), (63, 6185), (105, 3711), (315, 1237)]