256199997

素因数分解:

$3^1\times {\mathrm{73}}^1\times {\mathrm{691}}^1\times {\mathrm{1693}}^1$

素因数の和:2460

約数の個数: 16

約数和(自身を含む): 346985408

約数和(自身を除く): 90785411

約数列:

[1, 3, 73, 219, 691, 1693, 2073, 5079, 50443, 123589, 151329, 370767, 1169863, 3509589, 85399999, 256199997]

約数ペア:

[(1, 256199997), (3, 85399999), (73, 3509589), (219, 1169863), (691, 370767), (1693, 151329), (2073, 123589), (5079, 50443)]