28903959

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2683}}^1$

素因数の和:2721

約数の個数: 40

約数和(自身を含む): 51962240

約数和(自身を除く): 23058281

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 81, 133, 171, 189, 399, 513, 567, 1197, 1539, 2683, 3591, 8049, 10773, 18781, 24147, 50977, 56343, 72441, 152931, 169029, 217323, 356839, 458793, 507087, 1070517, 1376379, 1521261, 3211551, 4129137, 9634653, 28903959]

約数ペア:

[(1, 28903959), (3, 9634653), (7, 4129137), (9, 3211551), (19, 1521261), (21, 1376379), (27, 1070517), (57, 507087), (63, 458793), (81, 356839), (133, 217323), (171, 169029), (189, 152931), (399, 72441), (513, 56343), (567, 50977), (1197, 24147), (1539, 18781), (2683, 10773), (3591, 8049)]