21031090

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1543}}^1$

素因数の和:1626

約数の個数: 32

約数和(自身を含む): 40020480

約数和(自身を除く): 18989390

約数列:

[1, 2, 5, 10, 29, 47, 58, 94, 145, 235, 290, 470, 1363, 1543, 2726, 3086, 6815, 7715, 13630, 15430, 44747, 72521, 89494, 145042, 223735, 362605, 447470, 725210, 2103109, 4206218, 10515545, 21031090]

約数ペア:

[(1, 21031090), (2, 10515545), (5, 4206218), (10, 2103109), (29, 725210), (47, 447470), (58, 362605), (94, 223735), (145, 145042), (235, 89494), (290, 72521), (470, 44747), (1363, 15430), (1543, 13630), (2726, 7715), (3086, 6815)]