19999722904

素因数分解:

$2^3\times 7^1\times {\mathrm{357137909}}^1$

素因数の和:357137922

約数の個数: 16

約数和(自身を含む): 42856549200

約数和(自身を除く): 22856826296

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 357137909, 714275818, 1428551636, 2499965363, 2857103272, 4999930726, 9999861452, 19999722904]

約数ペア:

[(1, 19999722904), (2, 9999861452), (4, 4999930726), (7, 2857103272), (8, 2499965363), (14, 1428551636), (28, 714275818), (56, 357137909)]