21480455984

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1\times {\mathrm{7823}}^1$

素因数の和:8194

約数の個数: 80

約数和(自身を含む): 46017388032

約数和(自身を除く): 24536932048

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 86, 104, 172, 208, 307, 344, 559, 614, 688, 1118, 1228, 2236, 2456, 3991, 4472, 4912, 7823, 7982, 8944, 13201, 15646, 15964, 26402, 31292, 31928, 52804, 62584, 63856, 101699, 105608, 125168, 171613, 203398, 211216, 336389, 343226, 406796, 672778, 686452, 813592, 1345556, 1372904, 1627184, 2401661, 2691112, 2745808, 4373057, 4803322, 5382224, 8746114, 9606644, 17492228, 19213288, 31221593, 34984456, 38426576, 62443186, 69968912, 103271423, 124886372, 206542846, 249772744, 413085692, 499545488, 826171384, 1342528499, 1652342768, 2685056998, 5370113996, 10740227992, 21480455984]

約数ペア:

[(1, 21480455984), (2, 10740227992), (4, 5370113996), (8, 2685056998), (13, 1652342768), (16, 1342528499), (26, 826171384), (43, 499545488), (52, 413085692), (86, 249772744), (104, 206542846), (172, 124886372), (208, 103271423), (307, 69968912), (344, 62443186), (559, 38426576), (614, 34984456), (688, 31221593), (1118, 19213288), (1228, 17492228), (2236, 9606644), (2456, 8746114), (3991, 5382224), (4472, 4803322), (4912, 4373057), (7823, 2745808), (7982, 2691112), (8944, 2401661), (13201, 1627184), (15646, 1372904), (15964, 1345556), (26402, 813592), (31292, 686452), (31928, 672778), (52804, 406796), (62584, 343226), (63856, 336389), (101699, 211216), (105608, 203398), (125168, 171613)]