28407821

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{571}}^1$

素因数の和:716

約数の個数: 16

約数和(自身を含む): 31711680

約数和(自身を除く): 3303859

約数列:

[1, 13, 43, 89, 559, 571, 1157, 3827, 7423, 24553, 49751, 50819, 319189, 660647, 2185217, 28407821]

約数ペア:

[(1, 28407821), (13, 2185217), (43, 660647), (89, 319189), (559, 50819), (571, 49751), (1157, 24553), (3827, 7423)]