18875505

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{823}}^1$

素因数の和:981

約数の個数: 32

約数和(自身を含む): 33223680

約数和(自身を除く): 14348175

約数列:

[1, 3, 5, 11, 15, 33, 55, 139, 165, 417, 695, 823, 1529, 2085, 2469, 4115, 4587, 7645, 9053, 12345, 22935, 27159, 45265, 114397, 135795, 343191, 571985, 1258367, 1715955, 3775101, 6291835, 18875505]

約数ペア:

[(1, 18875505), (3, 6291835), (5, 3775101), (11, 1715955), (15, 1258367), (33, 571985), (55, 343191), (139, 135795), (165, 114397), (417, 45265), (695, 27159), (823, 22935), (1529, 12345), (2085, 9053), (2469, 7645), (4115, 4587)]