18613959

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1663}}^1$

素因数の和:1727

約数の個数: 32

約数和(自身を含む): 31309824

約数和(自身を除く): 12695865

約数列:

[1, 3, 7, 13, 21, 39, 41, 91, 123, 273, 287, 533, 861, 1599, 1663, 3731, 4989, 11193, 11641, 21619, 34923, 64857, 68183, 151333, 204549, 453999, 477281, 886379, 1431843, 2659137, 6204653, 18613959]

約数ペア:

[(1, 18613959), (3, 6204653), (7, 2659137), (13, 1431843), (21, 886379), (39, 477281), (41, 453999), (91, 204549), (123, 151333), (273, 68183), (287, 64857), (533, 34923), (861, 21619), (1599, 11641), (1663, 11193), (3731, 4989)]