19996419

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{379}}^1\times {\mathrm{409}}^1$

素因数の和:834

約数の個数: 16

約数和(自身を含む): 27420800

約数和(自身を除く): 7424381

約数列:

[1, 3, 43, 129, 379, 409, 1137, 1227, 16297, 17587, 48891, 52761, 155011, 465033, 6665473, 19996419]

約数ペア:

[(1, 19996419), (3, 6665473), (43, 465033), (129, 155011), (379, 52761), (409, 48891), (1137, 17587), (1227, 16297)]