21052960

素因数分解:

$2^5\times 5^1\times {\mathrm{131581}}^1$

素因数の和:131596

約数の個数: 24

約数和(自身を含む): 49737996

約数和(自身を除く): 28685036

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 131581, 263162, 526324, 657905, 1052648, 1315810, 2105296, 2631620, 4210592, 5263240, 10526480, 21052960]

約数ペア:

[(1, 21052960), (2, 10526480), (4, 5263240), (5, 4210592), (8, 2631620), (10, 2105296), (16, 1315810), (20, 1052648), (32, 657905), (40, 526324), (80, 263162), (160, 131581)]