217445487

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{87013}}^1$

素因数の和:87047

約数の個数: 24

約数和(自身を含む): 357105456

約数和(自身を除く): 139659969

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 87013, 261039, 609091, 1479221, 1827273, 4263637, 4437663, 10354547, 12790911, 31063641, 72481829, 217445487]

約数ペア:

[(1, 217445487), (3, 72481829), (7, 31063641), (17, 12790911), (21, 10354547), (49, 4437663), (51, 4263637), (119, 1827273), (147, 1479221), (357, 609091), (833, 261039), (2499, 87013)]