28988661

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:154

約数の個数: 48

約数和(自身を含む): 46085760

約数和(自身を除く): 17097099

約数列:

[1, 3, 13, 19, 29, 39, 57, 71, 87, 213, 247, 361, 377, 551, 741, 923, 1083, 1131, 1349, 1653, 2059, 2769, 4047, 4693, 6177, 7163, 10469, 14079, 17537, 21489, 25631, 26767, 31407, 39121, 52611, 76893, 80301, 117363, 136097, 333203, 408291, 508573, 743299, 999609, 1525719, 2229897, 9662887, 28988661]

約数ペア:

[(1, 28988661), (3, 9662887), (13, 2229897), (19, 1525719), (29, 999609), (39, 743299), (57, 508573), (71, 408291), (87, 333203), (213, 136097), (247, 117363), (361, 80301), (377, 76893), (551, 52611), (741, 39121), (923, 31407), (1083, 26767), (1131, 25631), (1349, 21489), (1653, 17537), (2059, 14079), (2769, 10469), (4047, 7163), (4693, 6177)]