21503210

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{74149}}^1$

素因数の和:74185

約数の個数: 16

約数和(自身を含む): 40041000

約数和(自身を除く): 18537790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 74149, 148298, 370745, 741490, 2150321, 4300642, 10751605, 21503210]

約数ペア:

[(1, 21503210), (2, 10751605), (5, 4300642), (10, 2150321), (29, 741490), (58, 370745), (145, 148298), (290, 74149)]