21168230

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{521}}^1$

素因数の和:784

約数の個数: 32

約数和(自身を含む): 40590720

約数和(自身を除く): 19422490

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 239, 478, 521, 1042, 1195, 2390, 2605, 4063, 5210, 8126, 8857, 17714, 20315, 40630, 44285, 88570, 124519, 249038, 622595, 1245190, 2116823, 4233646, 10584115, 21168230]

約数ペア:

[(1, 21168230), (2, 10584115), (5, 4233646), (10, 2116823), (17, 1245190), (34, 622595), (85, 249038), (170, 124519), (239, 88570), (478, 44285), (521, 40630), (1042, 20315), (1195, 17714), (2390, 8857), (2605, 8126), (4063, 5210)]