21208095

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{9241}}^1$

素因数の和:9272

約数の個数: 32

約数和(自身を含む): 39925440

約数和(自身を除く): 18717345

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 9241, 27723, 46205, 83169, 138615, 157097, 249507, 415845, 471291, 785485, 1247535, 1413873, 2356455, 4241619, 7069365, 21208095]

約数ペア:

[(1, 21208095), (3, 7069365), (5, 4241619), (9, 2356455), (15, 1413873), (17, 1247535), (27, 785485), (45, 471291), (51, 415845), (85, 249507), (135, 157097), (153, 138615), (255, 83169), (459, 46205), (765, 27723), (2295, 9241)]