21591156

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{971}}^1$

素因数の和:1104

約数の個数: 48

約数和(自身を含む): 53887680

約数和(自身を除く): 32296524

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 109, 204, 218, 327, 436, 654, 971, 1308, 1853, 1942, 2913, 3706, 3884, 5559, 5826, 7412, 11118, 11652, 16507, 22236, 33014, 49521, 66028, 99042, 105839, 198084, 211678, 317517, 423356, 635034, 1270068, 1799263, 3598526, 5397789, 7197052, 10795578, 21591156]

約数ペア:

[(1, 21591156), (2, 10795578), (3, 7197052), (4, 5397789), (6, 3598526), (12, 1799263), (17, 1270068), (34, 635034), (51, 423356), (68, 317517), (102, 211678), (109, 198084), (204, 105839), (218, 99042), (327, 66028), (436, 49521), (654, 33014), (971, 22236), (1308, 16507), (1853, 11652), (1942, 11118), (2913, 7412), (3706, 5826), (3884, 5559)]