20413804

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{17659}}^1$

素因数の和:17697

約数の個数: 18

約数和(自身を含む): 37951340

約数和(自身を除く): 17537536

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 17659, 35318, 70636, 300203, 600406, 1200812, 5103451, 10206902, 20413804]

約数ペア:

[(1, 20413804), (2, 10206902), (4, 5103451), (17, 1200812), (34, 600406), (68, 300203), (289, 70636), (578, 35318), (1156, 17659)]