18679869

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2801}}^1$

素因数の和:2842

約数の個数: 32

約数和(自身を含む): 31382400

約数和(自身を除く): 12702531

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 117, 171, 247, 351, 513, 741, 2223, 2801, 6669, 8403, 25209, 36413, 53219, 75627, 109239, 159657, 327717, 478971, 691847, 983151, 1436913, 2075541, 6226623, 18679869]

約数ペア:

[(1, 18679869), (3, 6226623), (9, 2075541), (13, 1436913), (19, 983151), (27, 691847), (39, 478971), (57, 327717), (117, 159657), (171, 109239), (247, 75627), (351, 53219), (513, 36413), (741, 25209), (2223, 8403), (2801, 6669)]