21868030

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{75407}}^1$

素因数の和:75443

約数の個数: 16

約数和(自身を含む): 40720320

約数和(自身を除く): 18852290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 75407, 150814, 377035, 754070, 2186803, 4373606, 10934015, 21868030]

約数ペア:

[(1, 21868030), (2, 10934015), (5, 4373606), (10, 2186803), (29, 754070), (58, 377035), (145, 150814), (290, 75407)]