21705960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{180883}}^1$

素因数の和:180897

約数の個数: 32

約数和(自身を含む): 65118240

約数和(自身を除く): 43412280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 180883, 361766, 542649, 723532, 904415, 1085298, 1447064, 1808830, 2170596, 2713245, 3617660, 4341192, 5426490, 7235320, 10852980, 21705960]

約数ペア:

[(1, 21705960), (2, 10852980), (3, 7235320), (4, 5426490), (5, 4341192), (6, 3617660), (8, 2713245), (10, 2170596), (12, 1808830), (15, 1447064), (20, 1085298), (24, 904415), (30, 723532), (40, 542649), (60, 361766), (120, 180883)]