19992678

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{77491}}^1$

素因数の和:77539

約数の個数: 16

約数和(自身を含む): 40915776

約数和(自身を除く): 20923098

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 77491, 154982, 232473, 464946, 3332113, 6664226, 9996339, 19992678]

約数ペア:

[(1, 19992678), (2, 9996339), (3, 6664226), (6, 3332113), (43, 464946), (86, 232473), (129, 154982), (258, 77491)]