21258610

素因数分解:

$2^1\times 5^1\times {\mathrm{241}}^1\times {\mathrm{8821}}^1$

素因数の和:9069

約数の個数: 16

約数和(自身を含む): 38428632

約数和(自身を除く): 17170022

約数列:

[1, 2, 5, 10, 241, 482, 1205, 2410, 8821, 17642, 44105, 88210, 2125861, 4251722, 10629305, 21258610]

約数ペア:

[(1, 21258610), (2, 10629305), (5, 4251722), (10, 2125861), (241, 88210), (482, 44105), (1205, 17642), (2410, 8821)]