66689218

素因数分解:

$2^1\times {\mathrm{131}}^1\times {\mathrm{331}}^1\times {\mathrm{769}}^1$

素因数の和:1233

約数の個数: 16

約数和(自身を含む): 101233440

約数和(自身を除く): 34544222

約数列:

[1, 2, 131, 262, 331, 662, 769, 1538, 43361, 86722, 100739, 201478, 254539, 509078, 33344609, 66689218]

約数ペア:

[(1, 66689218), (2, 33344609), (131, 509078), (262, 254539), (331, 201478), (662, 100739), (769, 86722), (1538, 43361)]