20488615

素因数分解:

$5^1\times 7^2\times {\mathrm{241}}^1\times {\mathrm{347}}^1$

素因数の和:607

約数の個数: 24

約数和(自身を含む): 28801872

約数和(自身を除く): 8313257

約数列:

[1, 5, 7, 35, 49, 241, 245, 347, 1205, 1687, 1735, 2429, 8435, 11809, 12145, 17003, 59045, 83627, 85015, 418135, 585389, 2926945, 4097723, 20488615]

約数ペア:

[(1, 20488615), (5, 4097723), (7, 2926945), (35, 585389), (49, 418135), (241, 85015), (245, 83627), (347, 59045), (1205, 17003), (1687, 12145), (1735, 11809), (2429, 8435)]