20381751

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{6007}}^1$

素因数の和:6055

約数の個数: 24

約数和(自身を含む): 32803680

約数和(自身を除く): 12421929

約数列:

[1, 3, 9, 13, 29, 39, 87, 117, 261, 377, 1131, 3393, 6007, 18021, 54063, 78091, 174203, 234273, 522609, 702819, 1567827, 2264639, 6793917, 20381751]

約数ペア:

[(1, 20381751), (3, 6793917), (9, 2264639), (13, 1567827), (29, 702819), (39, 522609), (87, 234273), (117, 174203), (261, 78091), (377, 54063), (1131, 18021), (3393, 6007)]