19891924

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{1381}}^1$

素因数の和:1675

約数の個数: 24

約数和(自身を含む): 37651208

約数和(自身を除く): 17759284

約数列:

[1, 2, 4, 13, 26, 52, 277, 554, 1108, 1381, 2762, 3601, 5524, 7202, 14404, 17953, 35906, 71812, 382537, 765074, 1530148, 4972981, 9945962, 19891924]

約数ペア:

[(1, 19891924), (2, 9945962), (4, 4972981), (13, 1530148), (26, 765074), (52, 382537), (277, 71812), (554, 35906), (1108, 17953), (1381, 14404), (2762, 7202), (3601, 5524)]