20295886

素因数分解:

$2^1\times {\mathrm{13}}^3\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 34272000

約数和(自身を除く): 13976114

約数列:

[1, 2, 13, 26, 31, 62, 149, 169, 298, 338, 403, 806, 1937, 2197, 3874, 4394, 4619, 5239, 9238, 10478, 25181, 50362, 60047, 68107, 120094, 136214, 327353, 654706, 780611, 1561222, 10147943, 20295886]

約数ペア:

[(1, 20295886), (2, 10147943), (13, 1561222), (26, 780611), (31, 654706), (62, 327353), (149, 136214), (169, 120094), (298, 68107), (338, 60047), (403, 50362), (806, 25181), (1937, 10478), (2197, 9238), (3874, 5239), (4394, 4619)]