20512159647

素因数分解:

$3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{677}}^1\times {\mathrm{2903}}^1$

素因数の和:3668

約数の個数: 48

約数和(自身を含む): 32321659392

約数和(自身を除く): 11809499745

約数列:

[1, 3, 7, 21, 49, 71, 147, 213, 497, 677, 1491, 2031, 2903, 3479, 4739, 8709, 10437, 14217, 20321, 33173, 48067, 60963, 99519, 142247, 144201, 206113, 336469, 426741, 618339, 1009407, 1442791, 1965331, 2355283, 4328373, 5895993, 7065849, 10099537, 13757317, 30298611, 41271951, 96301219, 139538501, 288903657, 418615503, 976769507, 2930308521, 6837386549, 20512159647]

約数ペア:

[(1, 20512159647), (3, 6837386549), (7, 2930308521), (21, 976769507), (49, 418615503), (71, 288903657), (147, 139538501), (213, 96301219), (497, 41271951), (677, 30298611), (1491, 13757317), (2031, 10099537), (2903, 7065849), (3479, 5895993), (4739, 4328373), (8709, 2355283), (10437, 1965331), (14217, 1442791), (20321, 1009407), (33173, 618339), (48067, 426741), (60963, 336469), (99519, 206113), (142247, 144201)]