20861118

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:298

約数の個数: 64

約数和(自身を含む): 48755520

約数和(自身を除く): 27894402

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 53, 54, 74, 106, 111, 159, 197, 222, 318, 333, 394, 477, 591, 666, 954, 999, 1182, 1431, 1773, 1961, 1998, 2862, 3546, 3922, 5319, 5883, 7289, 10441, 10638, 11766, 14578, 17649, 20882, 21867, 31323, 35298, 43734, 52947, 62646, 65601, 93969, 105894, 131202, 187938, 196803, 281907, 386317, 393606, 563814, 772634, 1158951, 2317902, 3476853, 6953706, 10430559, 20861118]

約数ペア:

[(1, 20861118), (2, 10430559), (3, 6953706), (6, 3476853), (9, 2317902), (18, 1158951), (27, 772634), (37, 563814), (53, 393606), (54, 386317), (74, 281907), (106, 196803), (111, 187938), (159, 131202), (197, 105894), (222, 93969), (318, 65601), (333, 62646), (394, 52947), (477, 43734), (591, 35298), (666, 31323), (954, 21867), (999, 20882), (1182, 17649), (1431, 14578), (1773, 11766), (1961, 10638), (1998, 10441), (2862, 7289), (3546, 5883), (3922, 5319)]