19215870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{640529}}^1$

素因数の和:640539

約数の個数: 16

約数和(自身を含む): 46118160

約数和(自身を除く): 26902290

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 640529, 1281058, 1921587, 3202645, 3843174, 6405290, 9607935, 19215870]

約数ペア:

[(1, 19215870), (2, 9607935), (3, 6405290), (5, 3843174), (6, 3202645), (10, 1921587), (15, 1281058), (30, 640529)]