21292251

素因数分解:

$3^1\times {\mathrm{107}}^1\times {\mathrm{113}}^1\times {\mathrm{587}}^1$

素因数の和:810

約数の個数: 16

約数和(自身を含む): 28957824

約数和(自身を除く): 7665573

約数列:

[1, 3, 107, 113, 321, 339, 587, 1761, 12091, 36273, 62809, 66331, 188427, 198993, 7097417, 21292251]

約数ペア:

[(1, 21292251), (3, 7097417), (107, 198993), (113, 188427), (321, 66331), (339, 62809), (587, 36273), (1761, 12091)]