20513578

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{461}}^1\times {\mathrm{1171}}^1$

素因数の和:1653

約数の個数: 16

約数和(自身を含む): 32487840

約数和(自身を除く): 11974262

約数列:

[1, 2, 19, 38, 461, 922, 1171, 2342, 8759, 17518, 22249, 44498, 539831, 1079662, 10256789, 20513578]

約数ペア:

[(1, 20513578), (2, 10256789), (19, 1079662), (38, 539831), (461, 44498), (922, 22249), (1171, 17518), (2342, 8759)]