389664261

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{1327}}^1$

素因数の和:1478

約数の個数: 48

約数和(自身を含む): 662937600

約数和(自身を除く): 273273339

約数列:

[1, 3, 7, 9, 21, 59, 63, 79, 177, 237, 413, 531, 553, 711, 1239, 1327, 1659, 3717, 3981, 4661, 4977, 9289, 11943, 13983, 27867, 32627, 41949, 78293, 83601, 97881, 104833, 234879, 293643, 314499, 548051, 704637, 733831, 943497, 1644153, 2201493, 4932459, 6185147, 6604479, 18555441, 43296029, 55666323, 129888087, 389664261]

約数ペア:

[(1, 389664261), (3, 129888087), (7, 55666323), (9, 43296029), (21, 18555441), (59, 6604479), (63, 6185147), (79, 4932459), (177, 2201493), (237, 1644153), (413, 943497), (531, 733831), (553, 704637), (711, 548051), (1239, 314499), (1327, 293643), (1659, 234879), (3717, 104833), (3981, 97881), (4661, 83601), (4977, 78293), (9289, 41949), (11943, 32627), (13983, 27867)]