19413837

素因数分解:

$3^4\times {\mathrm{89}}^1\times {\mathrm{2693}}^1$

素因数の和:2794

約数の個数: 20

約数和(自身を含む): 29337660

約数和(自身を除く): 9923823

約数列:

[1, 3, 9, 27, 81, 89, 267, 801, 2403, 2693, 7209, 8079, 24237, 72711, 218133, 239677, 719031, 2157093, 6471279, 19413837]

約数ペア:

[(1, 19413837), (3, 6471279), (9, 2157093), (27, 719031), (81, 239677), (89, 218133), (267, 72711), (801, 24237), (2403, 8079), (2693, 7209)]