20171801745

素因数分解:

$3^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1117861}}^1$

素因数の和:1118273

約数の個数: 24

約数和(自身を含む): 35051680872

約数和(自身を除く): 14879879127

約数列:

[1, 3, 5, 9, 15, 45, 401, 1203, 2005, 3609, 6015, 18045, 1117861, 3353583, 5589305, 10060749, 16767915, 50303745, 448262261, 1344786783, 2241311305, 4034360349, 6723933915, 20171801745]

約数ペア:

[(1, 20171801745), (3, 6723933915), (5, 4034360349), (9, 2241311305), (15, 1344786783), (45, 448262261), (401, 50303745), (1203, 16767915), (2005, 10060749), (3609, 5589305), (6015, 3353583), (18045, 1117861)]