19901445

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{28229}}^1$

素因数の和:28284

約数の個数: 16

約数和(自身を含む): 32520960

約数和(自身を除く): 12619515

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 28229, 84687, 141145, 423435, 1326763, 3980289, 6633815, 19901445]

約数ペア:

[(1, 19901445), (3, 6633815), (5, 3980289), (15, 1326763), (47, 423435), (141, 141145), (235, 84687), (705, 28229)]