21294110

素因数分解:

$2^1\times 5^1\times {\mathrm{557}}^1\times {\mathrm{3823}}^1$

素因数の和:4387

約数の個数: 16

約数和(自身を含む): 38408256

約数和(自身を除く): 17114146

約数列:

[1, 2, 5, 10, 557, 1114, 2785, 3823, 5570, 7646, 19115, 38230, 2129411, 4258822, 10647055, 21294110]

約数ペア:

[(1, 21294110), (2, 10647055), (5, 4258822), (10, 2129411), (557, 38230), (1114, 19115), (2785, 7646), (3823, 5570)]