78647919

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{70663}}^1$

素因数の和:70726

約数の個数: 16

約数和(自身を含む): 122107392

約数和(自身を除く): 43459473

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 70663, 211989, 494641, 1483923, 3745139, 11235417, 26215973, 78647919]

約数ペア:

[(1, 78647919), (3, 26215973), (7, 11235417), (21, 3745139), (53, 1483923), (159, 494641), (371, 211989), (1113, 70663)]