19798684

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{13711}}^1$

素因数の和:13753

約数の個数: 18

約数和(自身を含む): 36569904

約数和(自身を除く): 16771220

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 13711, 27422, 54844, 260509, 521018, 1042036, 4949671, 9899342, 19798684]

約数ペア:

[(1, 19798684), (2, 9899342), (4, 4949671), (19, 1042036), (38, 521018), (76, 260509), (361, 54844), (722, 27422), (1444, 13711)]