81189194

素因数分解:

$2^1\times {\mathrm{97}}^1\times {\mathrm{431}}^1\times {\mathrm{971}}^1$

素因数の和:1501

約数の個数: 16

約数和(自身を含む): 123451776

約数和(自身を除く): 42262582

約数列:

[1, 2, 97, 194, 431, 862, 971, 1942, 41807, 83614, 94187, 188374, 418501, 837002, 40594597, 81189194]

約数ペア:

[(1, 81189194), (2, 40594597), (97, 837002), (194, 418501), (431, 188374), (862, 94187), (971, 83614), (1942, 41807)]