18019315

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:259

約数の個数: 24

約数和(自身を含む): 23317200

約数和(自身を除く): 5297885

約数列:

[1, 5, 19, 67, 95, 149, 335, 361, 745, 1273, 1805, 2831, 6365, 9983, 14155, 24187, 49915, 53789, 120935, 189677, 268945, 948385, 3603863, 18019315]

約数ペア:

[(1, 18019315), (5, 3603863), (19, 948385), (67, 268945), (95, 189677), (149, 120935), (335, 53789), (361, 49915), (745, 24187), (1273, 14155), (1805, 9983), (2831, 6365)]