20519696

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{67499}}^1$

素因数の和:67526

約数の個数: 20

約数和(自身を含む): 41850000

約数和(自身を除く): 21330304

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 67499, 134998, 269996, 539992, 1079984, 1282481, 2564962, 5129924, 10259848, 20519696]

約数ペア:

[(1, 20519696), (2, 10259848), (4, 5129924), (8, 2564962), (16, 1282481), (19, 1079984), (38, 539992), (76, 269996), (152, 134998), (304, 67499)]