20867509

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{691}}^1$

素因数の和:828

約数の個数: 16

約数和(自身を含む): 23716224

約数和(自身を除く): 2848715

約数列:

[1, 13, 23, 101, 299, 691, 1313, 2323, 8983, 15893, 30199, 69791, 206609, 907283, 1605193, 20867509]

約数ペア:

[(1, 20867509), (13, 1605193), (23, 907283), (101, 206609), (299, 69791), (691, 30199), (1313, 15893), (2323, 8983)]