21112870

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1549}}^1$

素因数の和:1632

約数の個数: 32

約数和(自身を含む): 40176000

約数和(自身を除く): 19063130

約数列:

[1, 2, 5, 10, 29, 47, 58, 94, 145, 235, 290, 470, 1363, 1549, 2726, 3098, 6815, 7745, 13630, 15490, 44921, 72803, 89842, 145606, 224605, 364015, 449210, 728030, 2111287, 4222574, 10556435, 21112870]

約数ペア:

[(1, 21112870), (2, 10556435), (5, 4222574), (10, 2111287), (29, 728030), (47, 449210), (58, 364015), (94, 224605), (145, 145606), (235, 89842), (290, 72803), (470, 44921), (1363, 15490), (1549, 13630), (2726, 7745), (3098, 6815)]