21496460

素因数分解:

$2^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{2063}}^1$

素因数の和:2593

約数の個数: 24

約数和(自身を含む): 45251136

約数和(自身を除く): 23754676

約数列:

[1, 2, 4, 5, 10, 20, 521, 1042, 2063, 2084, 2605, 4126, 5210, 8252, 10315, 10420, 20630, 41260, 1074823, 2149646, 4299292, 5374115, 10748230, 21496460]

約数ペア:

[(1, 21496460), (2, 10748230), (4, 5374115), (5, 4299292), (10, 2149646), (20, 1074823), (521, 41260), (1042, 20630), (2063, 10420), (2084, 10315), (2605, 8252), (4126, 5210)]