2019901995

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{347959}}^1$

素因数の和:348016

約数の個数: 32

約数和(自身を含む): 3674457600

約数和(自身を除く): 1654555605

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 129, 135, 215, 387, 645, 1161, 1935, 5805, 347959, 1043877, 1739795, 3131631, 5219385, 9394893, 14962237, 15658155, 44886711, 46974465, 74811185, 134660133, 224433555, 403980399, 673300665, 2019901995]

約数ペア:

[(1, 2019901995), (3, 673300665), (5, 403980399), (9, 224433555), (15, 134660133), (27, 74811185), (43, 46974465), (45, 44886711), (129, 15658155), (135, 14962237), (215, 9394893), (387, 5219385), (645, 3131631), (1161, 1739795), (1935, 1043877), (5805, 347959)]