20251791

素因数分解:

$3^2\times 7^1\times {\mathrm{521}}^1\times {\mathrm{617}}^1$

素因数の和:1151

約数の個数: 24

約数和(自身を含む): 33549984

約数和(自身を除く): 13298193

約数列:

[1, 3, 7, 9, 21, 63, 521, 617, 1563, 1851, 3647, 4319, 4689, 5553, 10941, 12957, 32823, 38871, 321457, 964371, 2250199, 2893113, 6750597, 20251791]

約数ペア:

[(1, 20251791), (3, 6750597), (7, 2893113), (9, 2250199), (21, 964371), (63, 321457), (521, 38871), (617, 32823), (1563, 12957), (1851, 10941), (3647, 5553), (4319, 4689)]