1981506

素因数分解:

$2^1\times 3^1\times {\mathrm{131}}^1\times {\mathrm{2521}}^1$

素因数の和:2657

約数の個数: 16

約数和(自身を含む): 3994848

約数和(自身を除く): 2013342

約数列:

[1, 2, 3, 6, 131, 262, 393, 786, 2521, 5042, 7563, 15126, 330251, 660502, 990753, 1981506]

約数ペア:

[(1, 1981506), (2, 990753), (3, 660502), (6, 330251), (131, 15126), (262, 7563), (393, 5042), (786, 2521)]