20213967

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{67}}^2\times {\mathrm{79}}^1$

素因数の和:235

約数の個数: 24

約数和(自身を含む): 29164800

約数和(自身を除く): 8950833

約数列:

[1, 3, 19, 57, 67, 79, 201, 237, 1273, 1501, 3819, 4489, 4503, 5293, 13467, 15879, 85291, 100567, 255873, 301701, 354631, 1063893, 6737989, 20213967]

約数ペア:

[(1, 20213967), (3, 6737989), (19, 1063893), (57, 354631), (67, 301701), (79, 255873), (201, 100567), (237, 85291), (1273, 15879), (1501, 13467), (3819, 5293), (4489, 4503)]