21894245

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1\times {\mathrm{617}}^1$

素因数の和:820

約数の個数: 16

約数和(自身を含む): 27053568

約数和(自身を除く): 5159323

約数列:

[1, 5, 47, 151, 235, 617, 755, 3085, 7097, 28999, 35485, 93167, 144995, 465835, 4378849, 21894245]

約数ペア:

[(1, 21894245), (5, 4378849), (47, 465835), (151, 144995), (235, 93167), (617, 35485), (755, 28999), (3085, 7097)]