21951496

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{5521}}^1$

素因数の和:5605

約数の個数: 32

約数和(自身を含む): 47710080

約数和(自身を除く): 25758584

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 284, 497, 568, 994, 1988, 3976, 5521, 11042, 22084, 38647, 44168, 77294, 154588, 309176, 391991, 783982, 1567964, 2743937, 3135928, 5487874, 10975748, 21951496]

約数ペア:

[(1, 21951496), (2, 10975748), (4, 5487874), (7, 3135928), (8, 2743937), (14, 1567964), (28, 783982), (56, 391991), (71, 309176), (142, 154588), (284, 77294), (497, 44168), (568, 38647), (994, 22084), (1988, 11042), (3976, 5521)]