18913005

素因数分解:

$3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2677}}^1$

素因数の和:2845

約数の個数: 24

約数和(自身を含む): 33003672

約数和(自身を除く): 14090667

約数列:

[1, 3, 5, 9, 15, 45, 157, 471, 785, 1413, 2355, 2677, 7065, 8031, 13385, 24093, 40155, 120465, 420289, 1260867, 2101445, 3782601, 6304335, 18913005]

約数ペア:

[(1, 18913005), (3, 6304335), (5, 3782601), (9, 2101445), (15, 1260867), (45, 420289), (157, 120465), (471, 40155), (785, 24093), (1413, 13385), (2355, 8031), (2677, 7065)]