21220386

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{18913}}^1$

素因数の和:18946

約数の個数: 32

約数和(自身を含む): 49025088

約数和(自身を除く): 27804702

約数列:

[1, 2, 3, 6, 11, 17, 22, 33, 34, 51, 66, 102, 187, 374, 561, 1122, 18913, 37826, 56739, 113478, 208043, 321521, 416086, 624129, 643042, 964563, 1248258, 1929126, 3536731, 7073462, 10610193, 21220386]

約数ペア:

[(1, 21220386), (2, 10610193), (3, 7073462), (6, 3536731), (11, 1929126), (17, 1248258), (22, 964563), (33, 643042), (34, 624129), (51, 416086), (66, 321521), (102, 208043), (187, 113478), (374, 56739), (561, 37826), (1122, 18913)]