639840001

素因数分解:

${\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1\times {\mathrm{1613}}^1$

素因数の和:1872

約数の個数: 16

約数和(自身を含む): 671217408

約数和(自身を除く): 31377407

約数列:

[1, 37, 71, 151, 1613, 2627, 5587, 10721, 59681, 114523, 243563, 396677, 4237351, 9011831, 17292973, 639840001]

約数ペア:

[(1, 639840001), (37, 17292973), (71, 9011831), (151, 4237351), (1613, 396677), (2627, 243563), (5587, 114523), (10721, 59681)]