21935979

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{599}}^1$

素因数の和:931

約数の個数: 24

約数和(自身を含む): 34288800

約数和(自身を除く): 12352821

約数列:

[1, 3, 9, 13, 39, 117, 313, 599, 939, 1797, 2817, 4069, 5391, 7787, 12207, 23361, 36621, 70083, 187487, 562461, 1687383, 2437331, 7311993, 21935979]

約数ペア:

[(1, 21935979), (3, 7311993), (9, 2437331), (13, 1687383), (39, 562461), (117, 187487), (313, 70083), (599, 36621), (939, 23361), (1797, 12207), (2817, 7787), (4069, 5391)]