18795404

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:338

約数の個数: 36

約数和(自身を含む): 35587440

約数和(自身を除く): 16792036

約数列:

[1, 2, 4, 17, 34, 68, 71, 142, 229, 284, 289, 458, 578, 916, 1156, 1207, 2414, 3893, 4828, 7786, 15572, 16259, 20519, 32518, 41038, 65036, 66181, 82076, 132362, 264724, 276403, 552806, 1105612, 4698851, 9397702, 18795404]

約数ペア:

[(1, 18795404), (2, 9397702), (4, 4698851), (17, 1105612), (34, 552806), (68, 276403), (71, 264724), (142, 132362), (229, 82076), (284, 66181), (289, 65036), (458, 41038), (578, 32518), (916, 20519), (1156, 16259), (1207, 15572), (2414, 7786), (3893, 4828)]