21057780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{350963}}^1$

素因数の和:350975

約数の個数: 24

約数和(自身を含む): 58961952

約数和(自身を除く): 37904172

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 350963, 701926, 1052889, 1403852, 1754815, 2105778, 3509630, 4211556, 5264445, 7019260, 10528890, 21057780]

約数ペア:

[(1, 21057780), (2, 10528890), (3, 7019260), (4, 5264445), (5, 4211556), (6, 3509630), (10, 2105778), (12, 1754815), (15, 1403852), (20, 1052889), (30, 701926), (60, 350963)]