21173916

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{463}}^1$

素因数の和:610

約数の個数: 48

約数和(自身を含む): 51344384

約数和(自身を除く): 30170468

約数列:

[1, 2, 3, 4, 6, 12, 37, 74, 103, 111, 148, 206, 222, 309, 412, 444, 463, 618, 926, 1236, 1389, 1852, 2778, 3811, 5556, 7622, 11433, 15244, 17131, 22866, 34262, 45732, 47689, 51393, 68524, 95378, 102786, 143067, 190756, 205572, 286134, 572268, 1764493, 3528986, 5293479, 7057972, 10586958, 21173916]

約数ペア:

[(1, 21173916), (2, 10586958), (3, 7057972), (4, 5293479), (6, 3528986), (12, 1764493), (37, 572268), (74, 286134), (103, 205572), (111, 190756), (148, 143067), (206, 102786), (222, 95378), (309, 68524), (412, 51393), (444, 47689), (463, 45732), (618, 34262), (926, 22866), (1236, 17131), (1389, 15244), (1852, 11433), (2778, 7622), (3811, 5556)]