1990332009

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{67157}}^1$

素因数の和:67289

約数の個数: 24

約数和(自身を含む): 2985844680

約数和(自身を除く): 995512671

約数列:

[1, 3, 9, 37, 89, 111, 267, 333, 801, 3293, 9879, 29637, 67157, 201471, 604413, 2484809, 5976973, 7454427, 17930919, 22363281, 53792757, 221148001, 663444003, 1990332009]

約数ペア:

[(1, 1990332009), (3, 663444003), (9, 221148001), (37, 53792757), (89, 22363281), (111, 17930919), (267, 7454427), (333, 5976973), (801, 2484809), (3293, 604413), (9879, 201471), (29637, 67157)]