20406166

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:157

約数の個数: 48

約数和(自身を含む): 36024912

約数和(自身を除く): 15618746

約数列:

[1, 2, 11, 22, 37, 43, 53, 74, 86, 106, 121, 242, 407, 473, 583, 814, 946, 1166, 1591, 1961, 2279, 3182, 3922, 4477, 4558, 5203, 6413, 8954, 10406, 12826, 17501, 21571, 25069, 35002, 43142, 50138, 84323, 168646, 192511, 237281, 275759, 385022, 474562, 551518, 927553, 1855106, 10203083, 20406166]

約数ペア:

[(1, 20406166), (2, 10203083), (11, 1855106), (22, 927553), (37, 551518), (43, 474562), (53, 385022), (74, 275759), (86, 237281), (106, 192511), (121, 168646), (242, 84323), (407, 50138), (473, 43142), (583, 35002), (814, 25069), (946, 21571), (1166, 17501), (1591, 12826), (1961, 10406), (2279, 8954), (3182, 6413), (3922, 5203), (4477, 4558)]