20308059

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{521}}^1$

素因数の和:659

約数の個数: 24

約数和(自身を含む): 30292704

約数和(自身を除く): 9984645

約数列:

[1, 3, 9, 61, 71, 183, 213, 521, 549, 639, 1563, 4331, 4689, 12993, 31781, 36991, 38979, 95343, 110973, 286029, 332919, 2256451, 6769353, 20308059]

約数ペア:

[(1, 20308059), (3, 6769353), (9, 2256451), (61, 332919), (71, 286029), (183, 110973), (213, 95343), (521, 38979), (549, 36991), (639, 31781), (1563, 12993), (4331, 4689)]