20895315

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{28429}}^1$

素因数の和:28451

約数の個数: 24

約数和(自身を含む): 38892240

約数和(自身を除く): 17996925

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 28429, 85287, 142145, 199003, 426435, 597009, 995015, 1393021, 2985045, 4179063, 6965105, 20895315]

約数ペア:

[(1, 20895315), (3, 6965105), (5, 4179063), (7, 2985045), (15, 1393021), (21, 995015), (35, 597009), (49, 426435), (105, 199003), (147, 142145), (245, 85287), (735, 28429)]