21031490883

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1\times {\mathrm{79691}}^1$

素因数の和:79875

約数の個数: 32

約数和(自身を含む): 30953647872

約数和(自身を除く): 9922156989

約数列:

[1, 3, 13, 39, 67, 101, 201, 303, 871, 1313, 2613, 3939, 6767, 20301, 79691, 87971, 239073, 263913, 1035983, 3107949, 5339297, 8048791, 16017891, 24146373, 69410861, 104634283, 208232583, 313902849, 539268997, 1617806991, 7010496961, 21031490883]

約数ペア:

[(1, 21031490883), (3, 7010496961), (13, 1617806991), (39, 539268997), (67, 313902849), (101, 208232583), (201, 104634283), (303, 69410861), (871, 24146373), (1313, 16017891), (2613, 8048791), (3939, 5339297), (6767, 3107949), (20301, 1035983), (79691, 263913), (87971, 239073)]