21279546

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{353}}^1$

素因数の和:575

約数の個数: 48

約数和(自身を含む): 49204584

約数和(自身を除く): 27925038

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 197, 306, 353, 394, 591, 706, 1059, 1182, 1773, 2118, 3177, 3349, 3546, 6001, 6354, 6698, 10047, 12002, 18003, 20094, 30141, 36006, 54009, 60282, 69541, 108018, 139082, 208623, 417246, 625869, 1182197, 1251738, 2364394, 3546591, 7093182, 10639773, 21279546]

約数ペア:

[(1, 21279546), (2, 10639773), (3, 7093182), (6, 3546591), (9, 2364394), (17, 1251738), (18, 1182197), (34, 625869), (51, 417246), (102, 208623), (153, 139082), (197, 108018), (306, 69541), (353, 60282), (394, 54009), (591, 36006), (706, 30141), (1059, 20094), (1182, 18003), (1773, 12002), (2118, 10047), (3177, 6698), (3349, 6354), (3546, 6001)]