19856690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{857}}^1$

素因数の和:1202

約数の個数: 32

約数和(自身を含む): 41019264

約数和(自身を除く): 21162574

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 331, 662, 857, 1655, 1714, 2317, 3310, 4285, 4634, 5999, 8570, 11585, 11998, 23170, 29995, 59990, 283667, 567334, 1418335, 1985669, 2836670, 3971338, 9928345, 19856690]

約数ペア:

[(1, 19856690), (2, 9928345), (5, 3971338), (7, 2836670), (10, 1985669), (14, 1418335), (35, 567334), (70, 283667), (331, 59990), (662, 29995), (857, 23170), (1655, 11998), (1714, 11585), (2317, 8570), (3310, 5999), (4285, 4634)]