21201230

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{571}}^1$

素因数の和:704

約数の個数: 32

約数和(自身を含む): 39536640

約数和(自身を除く): 18335410

約数列:

[1, 2, 5, 10, 47, 79, 94, 158, 235, 395, 470, 571, 790, 1142, 2855, 3713, 5710, 7426, 18565, 26837, 37130, 45109, 53674, 90218, 134185, 225545, 268370, 451090, 2120123, 4240246, 10600615, 21201230]

約数ペア:

[(1, 21201230), (2, 10600615), (5, 4240246), (10, 2120123), (47, 451090), (79, 268370), (94, 225545), (158, 134185), (235, 90218), (395, 53674), (470, 45109), (571, 37130), (790, 26837), (1142, 18565), (2855, 7426), (3713, 5710)]