20783450877

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{443}}^1\times {\mathrm{709}}^1$

素因数の和:1322

約数の個数: 64

約数和(自身を含む): 33410396160

約数和(自身を除く): 12626945283

約数列:

[1, 3, 7, 21, 23, 69, 137, 161, 411, 443, 483, 709, 959, 1329, 2127, 2877, 3101, 3151, 4963, 9303, 9453, 10189, 14889, 16307, 22057, 30567, 48921, 60691, 66171, 71323, 97133, 114149, 182073, 213969, 291399, 314087, 342447, 424837, 679931, 942261, 1274511, 1395893, 2039793, 2198609, 2234059, 4187679, 6595827, 6702177, 7224001, 9771251, 15638413, 21672003, 29313753, 43029919, 46915239, 50568007, 129089757, 151704021, 301209433, 903628299, 989688137, 2969064411, 6927816959, 20783450877]

約数ペア:

[(1, 20783450877), (3, 6927816959), (7, 2969064411), (21, 989688137), (23, 903628299), (69, 301209433), (137, 151704021), (161, 129089757), (411, 50568007), (443, 46915239), (483, 43029919), (709, 29313753), (959, 21672003), (1329, 15638413), (2127, 9771251), (2877, 7224001), (3101, 6702177), (3151, 6595827), (4963, 4187679), (9303, 2234059), (9453, 2198609), (10189, 2039793), (14889, 1395893), (16307, 1274511), (22057, 942261), (30567, 679931), (48921, 424837), (60691, 342447), (66171, 314087), (71323, 291399), (97133, 213969), (114149, 182073)]