21942495

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3187}}^1$

素因数の和:3221

約数の個数: 40

約数和(自身を含む): 41660784

約数和(自身を除く): 19718289

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 255, 405, 459, 765, 1377, 2295, 3187, 6885, 9561, 15935, 28683, 47805, 54179, 86049, 143415, 162537, 258147, 270895, 430245, 487611, 812685, 1290735, 1462833, 2438055, 4388499, 7314165, 21942495]

約数ペア:

[(1, 21942495), (3, 7314165), (5, 4388499), (9, 2438055), (15, 1462833), (17, 1290735), (27, 812685), (45, 487611), (51, 430245), (81, 270895), (85, 258147), (135, 162537), (153, 143415), (255, 86049), (405, 54179), (459, 47805), (765, 28683), (1377, 15935), (2295, 9561), (3187, 6885)]