21570690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{839}}^1\times {\mathrm{857}}^1$

素因数の和:1706

約数の個数: 32

約数和(自身を含む): 51891840

約数和(自身を除く): 30321150

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 839, 857, 1678, 1714, 2517, 2571, 4195, 4285, 5034, 5142, 8390, 8570, 12585, 12855, 25170, 25710, 719023, 1438046, 2157069, 3595115, 4314138, 7190230, 10785345, 21570690]

約数ペア:

[(1, 21570690), (2, 10785345), (3, 7190230), (5, 4314138), (6, 3595115), (10, 2157069), (15, 1438046), (30, 719023), (839, 25710), (857, 25170), (1678, 12855), (1714, 12585), (2517, 8570), (2571, 8390), (4195, 5142), (4285, 5034)]