16989615

素因数分解:

$3^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{397}}^1$

素因数の和:728

約数の個数: 32

約数和(自身を含む): 30375360

約数和(自身を除く): 13385745

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 317, 397, 951, 1191, 1585, 1985, 2853, 3573, 4755, 5955, 8559, 10719, 14265, 17865, 42795, 53595, 125849, 377547, 629245, 1132641, 1887735, 3397923, 5663205, 16989615]

約数ペア:

[(1, 16989615), (3, 5663205), (5, 3397923), (9, 1887735), (15, 1132641), (27, 629245), (45, 377547), (135, 125849), (317, 53595), (397, 42795), (951, 17865), (1191, 14265), (1585, 10719), (1985, 8559), (2853, 5955), (3573, 4755)]