21326253

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{5309}}^1$

素因数の和:5428

約数の個数: 16

約数和(自身を含む): 30925440

約数和(自身を除く): 9599187

約数列:

[1, 3, 13, 39, 103, 309, 1339, 4017, 5309, 15927, 69017, 207051, 546827, 1640481, 7108751, 21326253]

約数ペア:

[(1, 21326253), (3, 7108751), (13, 1640481), (39, 546827), (103, 207051), (309, 69017), (1339, 15927), (4017, 5309)]