21741808

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:214

約数の個数: 80

約数和(自身を含む): 49496832

約数和(自身を除く): 27755024

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 41, 44, 46, 82, 88, 92, 131, 164, 176, 184, 253, 262, 328, 368, 451, 506, 524, 656, 902, 943, 1012, 1048, 1441, 1804, 1886, 2024, 2096, 2882, 3013, 3608, 3772, 4048, 5371, 5764, 6026, 7216, 7544, 10373, 10742, 11528, 12052, 15088, 20746, 21484, 23056, 24104, 33143, 41492, 42968, 48208, 59081, 66286, 82984, 85936, 118162, 123533, 132572, 165968, 236324, 247066, 265144, 472648, 494132, 530288, 945296, 988264, 1358863, 1976528, 2717726, 5435452, 10870904, 21741808]

約数ペア:

[(1, 21741808), (2, 10870904), (4, 5435452), (8, 2717726), (11, 1976528), (16, 1358863), (22, 988264), (23, 945296), (41, 530288), (44, 494132), (46, 472648), (82, 265144), (88, 247066), (92, 236324), (131, 165968), (164, 132572), (176, 123533), (184, 118162), (253, 85936), (262, 82984), (328, 66286), (368, 59081), (451, 48208), (506, 42968), (524, 41492), (656, 33143), (902, 24104), (943, 23056), (1012, 21484), (1048, 20746), (1441, 15088), (1804, 12052), (1886, 11528), (2024, 10742), (2096, 10373), (2882, 7544), (3013, 7216), (3608, 6026), (3772, 5764), (4048, 5371)]