20748069

素因数分解:

$3^7\times {\mathrm{53}}^1\times {\mathrm{179}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 31881600

約数和(自身を除く): 11133531

約数列:

[1, 3, 9, 27, 53, 81, 159, 179, 243, 477, 537, 729, 1431, 1611, 2187, 4293, 4833, 9487, 12879, 14499, 28461, 38637, 43497, 85383, 115911, 130491, 256149, 391473, 768447, 2305341, 6916023, 20748069]

約数ペア:

[(1, 20748069), (3, 6916023), (9, 2305341), (27, 768447), (53, 391473), (81, 256149), (159, 130491), (179, 115911), (243, 85383), (477, 43497), (537, 38637), (729, 28461), (1431, 14499), (1611, 12879), (2187, 9487), (4293, 4833)]