21450585

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2683}}^1$

素因数の和:2745

約数の個数: 32

約数和(自身を含む): 37876608

約数和(自身を除く): 16426023

約数列:

[1, 3, 5, 13, 15, 39, 41, 65, 123, 195, 205, 533, 615, 1599, 2665, 2683, 7995, 8049, 13415, 34879, 40245, 104637, 110003, 174395, 330009, 523185, 550015, 1430039, 1650045, 4290117, 7150195, 21450585]

約数ペア:

[(1, 21450585), (3, 7150195), (5, 4290117), (13, 1650045), (15, 1430039), (39, 550015), (41, 523185), (65, 330009), (123, 174395), (195, 110003), (205, 104637), (533, 40245), (615, 34879), (1599, 13415), (2665, 8049), (2683, 7995)]