21397728

素因数分解:

$2^5\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{881}}^1$

素因数の和:928

約数の個数: 96

約数和(自身を含む): 64012032

約数和(自身を除く): 42614304

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 23, 24, 32, 33, 44, 46, 48, 66, 69, 88, 92, 96, 132, 138, 176, 184, 253, 264, 276, 352, 368, 506, 528, 552, 736, 759, 881, 1012, 1056, 1104, 1518, 1762, 2024, 2208, 2643, 3036, 3524, 4048, 5286, 6072, 7048, 8096, 9691, 10572, 12144, 14096, 19382, 20263, 21144, 24288, 28192, 29073, 38764, 40526, 42288, 58146, 60789, 77528, 81052, 84576, 116292, 121578, 155056, 162104, 222893, 232584, 243156, 310112, 324208, 445786, 465168, 486312, 648416, 668679, 891572, 930336, 972624, 1337358, 1783144, 1945248, 2674716, 3566288, 5349432, 7132576, 10698864, 21397728]

約数ペア:

[(1, 21397728), (2, 10698864), (3, 7132576), (4, 5349432), (6, 3566288), (8, 2674716), (11, 1945248), (12, 1783144), (16, 1337358), (22, 972624), (23, 930336), (24, 891572), (32, 668679), (33, 648416), (44, 486312), (46, 465168), (48, 445786), (66, 324208), (69, 310112), (88, 243156), (92, 232584), (96, 222893), (132, 162104), (138, 155056), (176, 121578), (184, 116292), (253, 84576), (264, 81052), (276, 77528), (352, 60789), (368, 58146), (506, 42288), (528, 40526), (552, 38764), (736, 29073), (759, 28192), (881, 24288), (1012, 21144), (1056, 20263), (1104, 19382), (1518, 14096), (1762, 12144), (2024, 10572), (2208, 9691), (2643, 8096), (3036, 7048), (3524, 6072), (4048, 5286)]