1927905

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:126

約数の個数: 48

約数和(自身を含む): 3731904

約数和(自身を除く): 1803999

約数列:

[1, 3, 5, 7, 15, 21, 35, 43, 49, 61, 105, 129, 147, 183, 215, 245, 301, 305, 427, 645, 735, 903, 915, 1281, 1505, 2107, 2135, 2623, 2989, 4515, 6321, 6405, 7869, 8967, 10535, 13115, 14945, 18361, 31605, 39345, 44835, 55083, 91805, 128527, 275415, 385581, 642635, 1927905]

約数ペア:

[(1, 1927905), (3, 642635), (5, 385581), (7, 275415), (15, 128527), (21, 91805), (35, 55083), (43, 44835), (49, 39345), (61, 31605), (105, 18361), (129, 14945), (147, 13115), (183, 10535), (215, 8967), (245, 7869), (301, 6405), (305, 6321), (427, 4515), (645, 2989), (735, 2623), (903, 2135), (915, 2107), (1281, 1505)]