20340879

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{12721}}^1$

素因数の和:12778

約数の個数: 16

約数和(自身を含む): 29922144

約数和(自身を除く): 9581265

約数列:

[1, 3, 13, 39, 41, 123, 533, 1599, 12721, 38163, 165373, 496119, 521561, 1564683, 6780293, 20340879]

約数ペア:

[(1, 20340879), (3, 6780293), (13, 1564683), (39, 521561), (41, 496119), (123, 165373), (533, 38163), (1599, 12721)]