21400370

素因数分解:

$2^1\times 5^1\times {\mathrm{1061}}^1\times {\mathrm{2017}}^1$

素因数の和:3085

約数の個数: 16

約数和(自身を含む): 38576088

約数和(自身を除く): 17175718

約数列:

[1, 2, 5, 10, 1061, 2017, 2122, 4034, 5305, 10085, 10610, 20170, 2140037, 4280074, 10700185, 21400370]

約数ペア:

[(1, 21400370), (2, 10700185), (5, 4280074), (10, 2140037), (1061, 20170), (2017, 10610), (2122, 10085), (4034, 5305)]