81335498

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{19867}}^1$

素因数の和:19981

約数の個数: 16

約数和(自身を含む): 128744640

約数和(自身を除く): 47409142

約数列:

[1, 2, 23, 46, 89, 178, 2047, 4094, 19867, 39734, 456941, 913882, 1768163, 3536326, 40667749, 81335498]

約数ペア:

[(1, 81335498), (2, 40667749), (23, 3536326), (46, 1768163), (89, 913882), (178, 456941), (2047, 39734), (4094, 19867)]