19922895

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{8681}}^1$

素因数の和:8712

約数の個数: 32

約数和(自身を含む): 37506240

約数和(自身を除く): 17583345

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 8681, 26043, 43405, 78129, 130215, 147577, 234387, 390645, 442731, 737885, 1171935, 1328193, 2213655, 3984579, 6640965, 19922895]

約数ペア:

[(1, 19922895), (3, 6640965), (5, 3984579), (9, 2213655), (15, 1328193), (17, 1171935), (27, 737885), (45, 442731), (51, 390645), (85, 234387), (135, 147577), (153, 130215), (255, 78129), (459, 43405), (765, 26043), (2295, 8681)]