81991084

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{41243}}^1$

素因数の和:41325

約数の個数: 24

約数和(自身を含む): 166295808

約数和(自身を除く): 84304724

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 41243, 82486, 164972, 288701, 577402, 1154804, 2928253, 5856506, 11713012, 20497771, 40995542, 81991084]

約数ペア:

[(1, 81991084), (2, 40995542), (4, 20497771), (7, 11713012), (14, 5856506), (28, 2928253), (71, 1154804), (142, 577402), (284, 288701), (497, 164972), (994, 82486), (1988, 41243)]