21542896

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{13331}}^1$

素因数の和:13440

約数の個数: 20

約数和(自身を含む): 42155784

約数和(自身を除く): 20612888

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 808, 1616, 13331, 26662, 53324, 106648, 213296, 1346431, 2692862, 5385724, 10771448, 21542896]

約数ペア:

[(1, 21542896), (2, 10771448), (4, 5385724), (8, 2692862), (16, 1346431), (101, 213296), (202, 106648), (404, 53324), (808, 26662), (1616, 13331)]