21074284

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1291}}^1$

素因数の和:1366

約数の個数: 48

約数和(自身を含む): 46884096

約数和(自身を除く): 25809812

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 53, 77, 106, 154, 212, 308, 371, 583, 742, 1166, 1291, 1484, 2332, 2582, 4081, 5164, 8162, 9037, 14201, 16324, 18074, 28402, 36148, 56804, 68423, 99407, 136846, 198814, 273692, 397628, 478961, 752653, 957922, 1505306, 1915844, 3010612, 5268571, 10537142, 21074284]

約数ペア:

[(1, 21074284), (2, 10537142), (4, 5268571), (7, 3010612), (11, 1915844), (14, 1505306), (22, 957922), (28, 752653), (44, 478961), (53, 397628), (77, 273692), (106, 198814), (154, 136846), (212, 99407), (308, 68423), (371, 56804), (583, 36148), (742, 28402), (1166, 18074), (1291, 16324), (1484, 14201), (2332, 9037), (2582, 8162), (4081, 5164)]