18539209

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{257}}^1$

素因数の和:480

約数の個数: 16

約数和(自身を含む): 20805120

約数和(自身を除く): 2265911

約数列:

[1, 13, 31, 179, 257, 403, 2327, 3341, 5549, 7967, 46003, 72137, 103571, 598039, 1426093, 18539209]

約数ペア:

[(1, 18539209), (13, 1426093), (31, 598039), (179, 103571), (257, 72137), (403, 46003), (2327, 7967), (3341, 5549)]