21012456

素因数分解:

$2^3\times 3^1\times {\mathrm{875519}}^1$

素因数の和:875528

約数の個数: 16

約数和(自身を含む): 52531200

約数和(自身を除く): 31518744

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 875519, 1751038, 2626557, 3502076, 5253114, 7004152, 10506228, 21012456]

約数ペア:

[(1, 21012456), (2, 10506228), (3, 7004152), (4, 5253114), (6, 3502076), (8, 2626557), (12, 1751038), (24, 875519)]