21292048

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{18743}}^1$

素因数の和:18822

約数の個数: 20

約数和(自身を含む): 41836608

約数和(自身を除く): 20544560

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 18743, 37486, 74972, 149944, 299888, 1330753, 2661506, 5323012, 10646024, 21292048]

約数ペア:

[(1, 21292048), (2, 10646024), (4, 5323012), (8, 2661506), (16, 1330753), (71, 299888), (142, 149944), (284, 74972), (568, 37486), (1136, 18743)]