81977229

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1$

素因数の和:386

約数の個数: 48

約数和(自身を含む): 131539200

約数和(自身を除く): 49561971

約数列:

[1, 3, 9, 19, 29, 57, 61, 87, 171, 183, 261, 271, 549, 551, 813, 1159, 1653, 1769, 2439, 3477, 4959, 5149, 5307, 7859, 10431, 15447, 15921, 16531, 23577, 33611, 46341, 49593, 70731, 100833, 148779, 149321, 302499, 314089, 447963, 479399, 942267, 1343889, 1438197, 2826801, 4314591, 9108581, 27325743, 81977229]

約数ペア:

[(1, 81977229), (3, 27325743), (9, 9108581), (19, 4314591), (29, 2826801), (57, 1438197), (61, 1343889), (87, 942267), (171, 479399), (183, 447963), (261, 314089), (271, 302499), (549, 149321), (551, 148779), (813, 100833), (1159, 70731), (1653, 49593), (1769, 46341), (2439, 33611), (3477, 23577), (4959, 16531), (5149, 15921), (5307, 15447), (7859, 10431)]