31157397

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 50294400

約数和(自身を除く): 19137003

約数列:

[1, 3, 9, 19, 29, 57, 61, 87, 103, 171, 183, 261, 309, 549, 551, 927, 1159, 1653, 1769, 1957, 2987, 3477, 4959, 5307, 5871, 6283, 8961, 10431, 15921, 17613, 18849, 26883, 33611, 56547, 56753, 100833, 119377, 170259, 182207, 302499, 358131, 510777, 546621, 1074393, 1639863, 3461933, 10385799, 31157397]

約数ペア:

[(1, 31157397), (3, 10385799), (9, 3461933), (19, 1639863), (29, 1074393), (57, 546621), (61, 510777), (87, 358131), (103, 302499), (171, 182207), (183, 170259), (261, 119377), (309, 100833), (549, 56753), (551, 56547), (927, 33611), (1159, 26883), (1653, 18849), (1769, 17613), (1957, 15921), (2987, 10431), (3477, 8961), (4959, 6283), (5307, 5871)]