28216307

素因数分解:

$7^2\times {\mathrm{179}}^1\times {\mathrm{3217}}^1$

素因数の和:3410

約数の個数: 12

約数和(自身を含む): 33016680

約数和(自身を除く): 4800373

約数列:

[1, 7, 49, 179, 1253, 3217, 8771, 22519, 157633, 575843, 4030901, 28216307]

約数ペア:

[(1, 28216307), (7, 4030901), (49, 575843), (179, 157633), (1253, 22519), (3217, 8771)]