19974064

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{113489}}^1$

素因数の和:113508

約数の個数: 20

約数和(自身を含む): 42218280

約数和(自身を除く): 22244216

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 113489, 226978, 453956, 907912, 1248379, 1815824, 2496758, 4993516, 9987032, 19974064]

約数ペア:

[(1, 19974064), (2, 9987032), (4, 4993516), (8, 2496758), (11, 1815824), (16, 1248379), (22, 907912), (44, 453956), (88, 226978), (176, 113489)]