21556890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{239521}}^1$

素因数の和:239534

約数の個数: 24

約数和(自身を含む): 56048148

約数和(自身を除く): 34491258

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 239521, 479042, 718563, 1197605, 1437126, 2155689, 2395210, 3592815, 4311378, 7185630, 10778445, 21556890]

約数ペア:

[(1, 21556890), (2, 10778445), (3, 7185630), (5, 4311378), (6, 3592815), (9, 2395210), (10, 2155689), (15, 1437126), (18, 1197605), (30, 718563), (45, 479042), (90, 239521)]