18291276297

素因数分解:

$3^2\times 7^2\times {\mathrm{79}}^1\times {\mathrm{163}}^1\times {\mathrm{3221}}^1$

素因数の和:3483

約数の個数: 72

約数和(自身を含む): 31324026240

約数和(自身を除く): 13032749943

約数列:

[1, 3, 7, 9, 21, 49, 63, 79, 147, 163, 237, 441, 489, 553, 711, 1141, 1467, 1659, 3221, 3423, 3871, 4977, 7987, 9663, 10269, 11613, 12877, 22547, 23961, 28989, 34839, 38631, 67641, 71883, 90139, 115893, 157829, 202923, 254459, 270417, 473487, 525023, 630973, 763377, 811251, 1420461, 1575069, 1781213, 1892919, 2290131, 3675161, 4725207, 5343639, 5678757, 11025483, 12468491, 16030917, 25726127, 33076449, 37405473, 41476817, 77178381, 112216419, 124430451, 231535143, 290337719, 373291353, 871013157, 2032364033, 2613039471, 6097092099, 18291276297]

約数ペア:

[(1, 18291276297), (3, 6097092099), (7, 2613039471), (9, 2032364033), (21, 871013157), (49, 373291353), (63, 290337719), (79, 231535143), (147, 124430451), (163, 112216419), (237, 77178381), (441, 41476817), (489, 37405473), (553, 33076449), (711, 25726127), (1141, 16030917), (1467, 12468491), (1659, 11025483), (3221, 5678757), (3423, 5343639), (3871, 4725207), (4977, 3675161), (7987, 2290131), (9663, 1892919), (10269, 1781213), (11613, 1575069), (12877, 1420461), (22547, 811251), (23961, 763377), (28989, 630973), (34839, 525023), (38631, 473487), (67641, 270417), (71883, 254459), (90139, 202923), (115893, 157829)]