18912555

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{6091}}^1$

素因数の和:6128

約数の個数: 32

約数和(自身を含む): 35089920

約数和(自身を除く): 16177365

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 207, 345, 621, 1035, 3105, 6091, 18273, 30455, 54819, 91365, 140093, 164457, 274095, 420279, 700465, 822285, 1260837, 2101395, 3782511, 6304185, 18912555]

約数ペア:

[(1, 18912555), (3, 6304185), (5, 3782511), (9, 2101395), (15, 1260837), (23, 822285), (27, 700465), (45, 420279), (69, 274095), (115, 164457), (135, 140093), (207, 91365), (345, 54819), (621, 30455), (1035, 18273), (3105, 6091)]