19910145

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{78079}}^1$

素因数の和:78104

約数の個数: 16

約数和(自身を含む): 33730560

約数和(自身を除く): 13820415

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 78079, 234237, 390395, 1171185, 1327343, 3982029, 6636715, 19910145]

約数ペア:

[(1, 19910145), (3, 6636715), (5, 3982029), (15, 1327343), (17, 1171185), (51, 390395), (85, 234237), (255, 78079)]