20443995

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{353}}^1$

素因数の和:394

約数の個数: 80

約数和(自身を含む): 43176672

約数和(自身を除く): 22732677

約数列:

[1, 3, 5, 9, 11, 13, 15, 27, 33, 39, 45, 55, 65, 81, 99, 117, 135, 143, 165, 195, 297, 351, 353, 405, 429, 495, 585, 715, 891, 1053, 1059, 1287, 1485, 1755, 1765, 2145, 3177, 3861, 3883, 4455, 4589, 5265, 5295, 6435, 9531, 11583, 11649, 13767, 15885, 19305, 19415, 22945, 28593, 34947, 41301, 47655, 50479, 57915, 58245, 68835, 104841, 123903, 142965, 151437, 174735, 206505, 252395, 314523, 371709, 454311, 524205, 619515, 757185, 1362933, 1572615, 1858545, 2271555, 4088799, 6814665, 20443995]

約数ペア:

[(1, 20443995), (3, 6814665), (5, 4088799), (9, 2271555), (11, 1858545), (13, 1572615), (15, 1362933), (27, 757185), (33, 619515), (39, 524205), (45, 454311), (55, 371709), (65, 314523), (81, 252395), (99, 206505), (117, 174735), (135, 151437), (143, 142965), (165, 123903), (195, 104841), (297, 68835), (351, 58245), (353, 57915), (405, 50479), (429, 47655), (495, 41301), (585, 34947), (715, 28593), (891, 22945), (1053, 19415), (1059, 19305), (1287, 15885), (1485, 13767), (1755, 11649), (1765, 11583), (2145, 9531), (3177, 6435), (3861, 5295), (3883, 5265), (4455, 4589)]