20909974

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1\times {\mathrm{727}}^1$

素因数の和:999

約数の個数: 16

約数和(自身を含む): 31999968

約数和(自身を除く): 11089994

約数列:

[1, 2, 73, 146, 197, 394, 727, 1454, 14381, 28762, 53071, 106142, 143219, 286438, 10454987, 20909974]

約数ペア:

[(1, 20909974), (2, 10454987), (73, 286438), (146, 143219), (197, 106142), (394, 53071), (727, 28762), (1454, 14381)]