21630992

素因数分解:

$2^4\times {\mathrm{811}}^1\times {\mathrm{1667}}^1$

素因数の和:2486

約数の個数: 20

約数和(自身を含む): 41986896

約数和(自身を除く): 20355904

約数列:

[1, 2, 4, 8, 16, 811, 1622, 1667, 3244, 3334, 6488, 6668, 12976, 13336, 26672, 1351937, 2703874, 5407748, 10815496, 21630992]

約数ペア:

[(1, 21630992), (2, 10815496), (4, 5407748), (8, 2703874), (16, 1351937), (811, 26672), (1622, 13336), (1667, 12976), (3244, 6668), (3334, 6488)]