21236660

素因数分解:

$2^2\times 5^1\times {\mathrm{503}}^1\times {\mathrm{2111}}^1$

素因数の和:2623

約数の個数: 24

約数和(自身を含む): 44706816

約数和(自身を除く): 23470156

約数列:

[1, 2, 4, 5, 10, 20, 503, 1006, 2012, 2111, 2515, 4222, 5030, 8444, 10060, 10555, 21110, 42220, 1061833, 2123666, 4247332, 5309165, 10618330, 21236660]

約数ペア:

[(1, 21236660), (2, 10618330), (4, 5309165), (5, 4247332), (10, 2123666), (20, 1061833), (503, 42220), (1006, 21110), (2012, 10555), (2111, 10060), (2515, 8444), (4222, 5030)]