28298907

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{317}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 50930880

約数和(自身を除く): 22631973

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 109, 117, 273, 317, 327, 763, 819, 951, 981, 1417, 2219, 2289, 2853, 4121, 4251, 6657, 6867, 9919, 12363, 12753, 19971, 28847, 29757, 34553, 37089, 86541, 89271, 103659, 241871, 259623, 310977, 449189, 725613, 1347567, 2176839, 3144323, 4042701, 9432969, 28298907]

約数ペア:

[(1, 28298907), (3, 9432969), (7, 4042701), (9, 3144323), (13, 2176839), (21, 1347567), (39, 725613), (63, 449189), (91, 310977), (109, 259623), (117, 241871), (273, 103659), (317, 89271), (327, 86541), (763, 37089), (819, 34553), (951, 29757), (981, 28847), (1417, 19971), (2219, 12753), (2289, 12363), (2853, 9919), (4121, 6867), (4251, 6657)]