20212125

素因数分解:

$3^1\times 5^3\times {\mathrm{53899}}^1$

素因数の和:53917

約数の個数: 16

約数和(自身を含む): 33633600

約数和(自身を除く): 13421475

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 53899, 161697, 269495, 808485, 1347475, 4042425, 6737375, 20212125]

約数ペア:

[(1, 20212125), (3, 6737375), (5, 4042425), (15, 1347475), (25, 808485), (75, 269495), (125, 161697), (375, 53899)]