21999621

素因数分解:

$3^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{6427}}^1$

素因数の和:6600

約数の個数: 16

約数和(自身を含む): 33734144

約数和(自身を除く): 11734523

約数列:

[1, 3, 7, 21, 163, 489, 1141, 3423, 6427, 19281, 44989, 134967, 1047601, 3142803, 7333207, 21999621]

約数ペア:

[(1, 21999621), (3, 7333207), (7, 3142803), (21, 1047601), (163, 134967), (489, 44989), (1141, 19281), (3423, 6427)]