21190030

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{51683}}^1$

素因数の和:51731

約数の個数: 16

約数和(自身を含む): 39073104

約数和(自身を除く): 17883074

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 51683, 103366, 258415, 516830, 2119003, 4238006, 10595015, 21190030]

約数ペア:

[(1, 21190030), (2, 10595015), (5, 4238006), (10, 2119003), (41, 516830), (82, 258415), (205, 103366), (410, 51683)]