21122889

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{5531}}^1$

素因数の和:5620

約数の個数: 16

約数和(自身を含む): 30094080

約数和(自身を除く): 8971191

約数列:

[1, 3, 19, 57, 67, 201, 1273, 3819, 5531, 16593, 105089, 315267, 370577, 1111731, 7040963, 21122889]

約数ペア:

[(1, 21122889), (3, 7040963), (19, 1111731), (57, 370577), (67, 315267), (201, 105089), (1273, 16593), (3819, 5531)]