81243596

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{40867}}^1$

素因数の和:40949

約数の個数: 24

約数和(自身を含む): 164779776

約数和(自身を除く): 83536180

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 40867, 81734, 163468, 286069, 572138, 1144276, 2901557, 5803114, 11606228, 20310899, 40621798, 81243596]

約数ペア:

[(1, 81243596), (2, 40621798), (4, 20310899), (7, 11606228), (14, 5803114), (28, 2901557), (71, 1144276), (142, 572138), (284, 286069), (497, 163468), (994, 81734), (1988, 40867)]