27998439

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{78427}}^1$

素因数の和:78454

約数の個数: 16

約数和(自身を含む): 45174528

約数和(自身を除く): 17176089

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 78427, 235281, 548989, 1333259, 1646967, 3999777, 9332813, 27998439]

約数ペア:

[(1, 27998439), (3, 9332813), (7, 3999777), (17, 1646967), (21, 1333259), (51, 548989), (119, 235281), (357, 78427)]