64847209

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{7993}}^1$

素因数の和:8080

約数の個数: 16

約数和(自身を含む): 79300480

約数和(自身を除く): 14453271

約数列:

[1, 7, 19, 61, 133, 427, 1159, 7993, 8113, 55951, 151867, 487573, 1063069, 3413011, 9263887, 64847209]

約数ペア:

[(1, 64847209), (7, 9263887), (19, 3413011), (61, 1063069), (133, 487573), (427, 151867), (1159, 55951), (7993, 8113)]