19991708

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{454357}}^1$

素因数の和:454372

約数の個数: 12

約数和(自身を含む): 38166072

約数和(自身を除く): 18174364

約数列:

[1, 2, 4, 11, 22, 44, 454357, 908714, 1817428, 4997927, 9995854, 19991708]

約数ペア:

[(1, 19991708), (2, 9995854), (4, 4997927), (11, 1817428), (22, 908714), (44, 454357)]