21016242

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1$

素因数の和:232

約数の個数: 96

約数和(自身を含む): 53726400

約数和(自身を除く): 32710158

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 29, 38, 39, 57, 58, 78, 87, 114, 117, 163, 171, 174, 234, 247, 261, 326, 342, 377, 489, 494, 522, 551, 741, 754, 978, 1102, 1131, 1467, 1482, 1653, 2119, 2223, 2262, 2934, 3097, 3306, 3393, 4238, 4446, 4727, 4959, 6194, 6357, 6786, 7163, 9291, 9454, 9918, 12714, 14181, 14326, 18582, 19071, 21489, 27873, 28362, 38142, 40261, 42543, 42978, 55746, 61451, 64467, 80522, 85086, 89813, 120783, 122902, 128934, 179626, 184353, 241566, 269439, 362349, 368706, 538878, 553059, 724698, 808317, 1106118, 1167569, 1616634, 2335138, 3502707, 7005414, 10508121, 21016242]

約数ペア:

[(1, 21016242), (2, 10508121), (3, 7005414), (6, 3502707), (9, 2335138), (13, 1616634), (18, 1167569), (19, 1106118), (26, 808317), (29, 724698), (38, 553059), (39, 538878), (57, 368706), (58, 362349), (78, 269439), (87, 241566), (114, 184353), (117, 179626), (163, 128934), (171, 122902), (174, 120783), (234, 89813), (247, 85086), (261, 80522), (326, 64467), (342, 61451), (377, 55746), (489, 42978), (494, 42543), (522, 40261), (551, 38142), (741, 28362), (754, 27873), (978, 21489), (1102, 19071), (1131, 18582), (1467, 14326), (1482, 14181), (1653, 12714), (2119, 9918), (2223, 9454), (2262, 9291), (2934, 7163), (3097, 6786), (3306, 6357), (3393, 6194), (4238, 4959), (4446, 4727)]