21285495

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6143}}^1$

素因数の和:6172

約数の個数: 48

約数和(自身を含む): 46006272

約数和(自身を除く): 24720777

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 165, 231, 315, 385, 495, 693, 1155, 3465, 6143, 18429, 30715, 43001, 55287, 67573, 92145, 129003, 202719, 215005, 276435, 337865, 387009, 473011, 608157, 645015, 1013595, 1419033, 1935045, 2365055, 3040785, 4257099, 7095165, 21285495]

約数ペア:

[(1, 21285495), (3, 7095165), (5, 4257099), (7, 3040785), (9, 2365055), (11, 1935045), (15, 1419033), (21, 1013595), (33, 645015), (35, 608157), (45, 473011), (55, 387009), (63, 337865), (77, 276435), (99, 215005), (105, 202719), (165, 129003), (231, 92145), (315, 67573), (385, 55287), (495, 43001), (693, 30715), (1155, 18429), (3465, 6143)]