18677997

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{607}}^1$

素因数の和:889

約数の個数: 24

約数和(自身を含む): 29213184

約数和(自身を除く): 10535187

約数列:

[1, 3, 9, 13, 39, 117, 263, 607, 789, 1821, 2367, 3419, 5463, 7891, 10257, 23673, 30771, 71019, 159641, 478923, 1436769, 2075333, 6225999, 18677997]

約数ペア:

[(1, 18677997), (3, 6225999), (9, 2075333), (13, 1436769), (39, 478923), (117, 159641), (263, 71019), (607, 30771), (789, 23673), (1821, 10257), (2367, 7891), (3419, 5463)]