17619340

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{21487}}^1$

素因数の和:21537

約数の個数: 24

約数和(自身を含む): 37904832

約数和(自身を除く): 20285492

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 21487, 42974, 85948, 107435, 214870, 429740, 880967, 1761934, 3523868, 4404835, 8809670, 17619340]

約数ペア:

[(1, 17619340), (2, 8809670), (4, 4404835), (5, 3523868), (10, 1761934), (20, 880967), (41, 429740), (82, 214870), (164, 107435), (205, 85948), (410, 42974), (820, 21487)]