21265998

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{2647}}^1$

素因数の和:2768

約数の個数: 32

約数和(自身を含む): 46265856

約数和(自身を除く): 24999858

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 103, 206, 309, 618, 1339, 2647, 2678, 4017, 5294, 7941, 8034, 15882, 34411, 68822, 103233, 206466, 272641, 545282, 817923, 1635846, 3544333, 7088666, 10632999, 21265998]

約数ペア:

[(1, 21265998), (2, 10632999), (3, 7088666), (6, 3544333), (13, 1635846), (26, 817923), (39, 545282), (78, 272641), (103, 206466), (206, 103233), (309, 68822), (618, 34411), (1339, 15882), (2647, 8034), (2678, 7941), (4017, 5294)]