28653261

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1019}}^1$

素因数の和:1145

約数の個数: 32

約数和(自身を含む): 47523840

約数和(自身を除く): 18870579

約数列:

[1, 3, 7, 13, 21, 39, 91, 103, 273, 309, 721, 1019, 1339, 2163, 3057, 4017, 7133, 9373, 13247, 21399, 28119, 39741, 92729, 104957, 278187, 314871, 734699, 1364441, 2204097, 4093323, 9551087, 28653261]

約数ペア:

[(1, 28653261), (3, 9551087), (7, 4093323), (13, 2204097), (21, 1364441), (39, 734699), (91, 314871), (103, 278187), (273, 104957), (309, 92729), (721, 39741), (1019, 28119), (1339, 21399), (2163, 13247), (3057, 9373), (4017, 7133)]