81401978

素因数分解:

$2^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{39023}}^1$

素因数の和:39181

約数の個数: 16

約数和(自身を含む): 140486400

約数和(自身を除く): 59084422

約数列:

[1, 2, 7, 14, 149, 298, 1043, 2086, 39023, 78046, 273161, 546322, 5814427, 11628854, 40700989, 81401978]

約数ペア:

[(1, 81401978), (2, 40700989), (7, 11628854), (14, 5814427), (149, 546322), (298, 273161), (1043, 78046), (2086, 39023)]