20978032318

素因数分解:

$2^1\times {\mathrm{251}}^1\times {\mathrm{4339}}^1\times {\mathrm{9631}}^1$

素因数の和:14223

約数の個数: 16

約数和(自身を含む): 31602977280

約数和(自身を除く): 10624944962

約数列:

[1, 2, 251, 502, 4339, 8678, 9631, 19262, 1089089, 2178178, 2417381, 4834762, 41788909, 83577818, 10489016159, 20978032318]

約数ペア:

[(1, 20978032318), (2, 10489016159), (251, 83577818), (502, 41788909), (4339, 4834762), (8678, 2417381), (9631, 2178178), (19262, 1089089)]