215145

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{683}}^1$

素因数の和:701

約数の個数: 24

約数和(自身を含む): 426816

約数和(自身を除く): 211671

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 683, 2049, 3415, 4781, 6147, 10245, 14343, 23905, 30735, 43029, 71715, 215145]

約数ペア:

[(1, 215145), (3, 71715), (5, 43029), (7, 30735), (9, 23905), (15, 14343), (21, 10245), (35, 6147), (45, 4781), (63, 3415), (105, 2049), (315, 683)]