20842216

素因数分解:

$2^3\times {\mathrm{139}}^1\times {\mathrm{18743}}^1$

素因数の和:18888

約数の個数: 16

約数和(自身を含む): 39362400

約数和(自身を除く): 18520184

約数列:

[1, 2, 4, 8, 139, 278, 556, 1112, 18743, 37486, 74972, 149944, 2605277, 5210554, 10421108, 20842216]

約数ペア:

[(1, 20842216), (2, 10421108), (4, 5210554), (8, 2605277), (139, 149944), (278, 74972), (556, 37486), (1112, 18743)]