21857296

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{71899}}^1$

素因数の和:71926

約数の個数: 20

約数和(自身を含む): 44578000

約数和(自身を除く): 22720704

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 71899, 143798, 287596, 575192, 1150384, 1366081, 2732162, 5464324, 10928648, 21857296]

約数ペア:

[(1, 21857296), (2, 10928648), (4, 5464324), (8, 2732162), (16, 1366081), (19, 1150384), (38, 575192), (76, 287596), (152, 143798), (304, 71899)]