218320239

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{911}}^1$

素因数の和:1095

約数の個数: 32

約数和(自身を含む): 319389696

約数和(自身を除く): 101069457

約数列:

[1, 3, 17, 37, 51, 111, 127, 381, 629, 911, 1887, 2159, 2733, 4699, 6477, 14097, 15487, 33707, 46461, 79883, 101121, 115697, 239649, 347091, 573019, 1719057, 1966849, 4280789, 5900547, 12842367, 72773413, 218320239]

約数ペア:

[(1, 218320239), (3, 72773413), (17, 12842367), (37, 5900547), (51, 4280789), (111, 1966849), (127, 1719057), (381, 573019), (629, 347091), (911, 239649), (1887, 115697), (2159, 101121), (2733, 79883), (4699, 46461), (6477, 33707), (14097, 15487)]