28663173

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{811}}^1$

素因数の和:855

約数の個数: 64

約数和(自身を含む): 56125440

約数和(自身を除く): 27462267

約数列:

[1, 3, 7, 9, 11, 17, 21, 27, 33, 51, 63, 77, 99, 119, 153, 187, 189, 231, 297, 357, 459, 561, 693, 811, 1071, 1309, 1683, 2079, 2433, 3213, 3927, 5049, 5677, 7299, 8921, 11781, 13787, 17031, 21897, 26763, 35343, 41361, 51093, 62447, 80289, 96509, 124083, 151657, 153279, 187341, 240867, 289527, 372249, 454971, 562023, 868581, 1061599, 1364913, 1686069, 2605743, 3184797, 4094739, 9554391, 28663173]

約数ペア:

[(1, 28663173), (3, 9554391), (7, 4094739), (9, 3184797), (11, 2605743), (17, 1686069), (21, 1364913), (27, 1061599), (33, 868581), (51, 562023), (63, 454971), (77, 372249), (99, 289527), (119, 240867), (153, 187341), (187, 153279), (189, 151657), (231, 124083), (297, 96509), (357, 80289), (459, 62447), (561, 51093), (693, 41361), (811, 35343), (1071, 26763), (1309, 21897), (1683, 17031), (2079, 13787), (2433, 11781), (3213, 8921), (3927, 7299), (5049, 5677)]