278938401

素因数分解:

$3^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{42437}}^1$

素因数の和:42760

約数の個数: 16

約数和(自身を含む): 426417024

約数和(自身を除く): 147478623

約数列:

[1, 3, 7, 21, 313, 939, 2191, 6573, 42437, 127311, 297059, 891177, 13282781, 39848343, 92979467, 278938401]

約数ペア:

[(1, 278938401), (3, 92979467), (7, 39848343), (21, 13282781), (313, 891177), (939, 297059), (2191, 127311), (6573, 42437)]