21067891

素因数分解:

${\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:159

約数の個数: 24

約数和(自身を含む): 24583104

約数和(自身を除く): 3515213

約数列:

[1, 13, 29, 41, 47, 377, 533, 611, 841, 1189, 1363, 1927, 10933, 15457, 17719, 25051, 34481, 39527, 55883, 448253, 513851, 726479, 1620607, 21067891]

約数ペア:

[(1, 21067891), (13, 1620607), (29, 726479), (41, 513851), (47, 448253), (377, 55883), (533, 39527), (611, 34481), (841, 25051), (1189, 17719), (1363, 15457), (1927, 10933)]