2153421

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:233

約数の個数: 24

約数和(自身を含む): 3309696

約数和(自身を除く): 1156275

約数列:

[1, 3, 9, 23, 69, 101, 103, 207, 303, 309, 909, 927, 2323, 2369, 6969, 7107, 10403, 20907, 21321, 31209, 93627, 239269, 717807, 2153421]

約数ペア:

[(1, 2153421), (3, 717807), (9, 239269), (23, 93627), (69, 31209), (101, 21321), (103, 20907), (207, 10403), (303, 7107), (309, 6969), (909, 2369), (927, 2323)]