90041987

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{7877}}^1$

素因数の和:7978

約数の個数: 16

約数和(自身を含む): 108905472

約数和(自身を除く): 18863485

約数列:

[1, 7, 23, 71, 161, 497, 1633, 7877, 11431, 55139, 181171, 559267, 1268197, 3914869, 12863141, 90041987]

約数ペア:

[(1, 90041987), (7, 12863141), (23, 3914869), (71, 1268197), (161, 559267), (497, 181171), (1633, 55139), (7877, 11431)]