21872404

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{5273}}^1$

素因数の和:5355

約数の個数: 24

約数和(自身を含む): 41200488

約数和(自身を除く): 19328084

約数列:

[1, 2, 4, 17, 34, 61, 68, 122, 244, 1037, 2074, 4148, 5273, 10546, 21092, 89641, 179282, 321653, 358564, 643306, 1286612, 5468101, 10936202, 21872404]

約数ペア:

[(1, 21872404), (2, 10936202), (4, 5468101), (17, 1286612), (34, 643306), (61, 358564), (68, 321653), (122, 179282), (244, 89641), (1037, 21092), (2074, 10546), (4148, 5273)]