21774195

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{28463}}^1$

素因数の和:28491

約数の個数: 24

約数和(自身を含む): 39963456

約数和(自身を除く): 18189261

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 28463, 85389, 142315, 256167, 426945, 483871, 1280835, 1451613, 2419355, 4354839, 7258065, 21774195]

約数ペア:

[(1, 21774195), (3, 7258065), (5, 4354839), (9, 2419355), (15, 1451613), (17, 1280835), (45, 483871), (51, 426945), (85, 256167), (153, 142315), (255, 85389), (765, 28463)]