64789347

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{457}}^1$

素因数の和:667

約数の個数: 32

約数和(自身を含む): 101888512

約数和(自身を除く): 37099165

約数列:

[1, 3, 7, 21, 43, 129, 157, 301, 457, 471, 903, 1099, 1371, 3199, 3297, 6751, 9597, 19651, 20253, 47257, 58953, 71749, 137557, 141771, 215247, 412671, 502243, 1506729, 3085207, 9255621, 21596449, 64789347]

約数ペア:

[(1, 64789347), (3, 21596449), (7, 9255621), (21, 3085207), (43, 1506729), (129, 502243), (157, 412671), (301, 215247), (457, 141771), (471, 137557), (903, 71749), (1099, 58953), (1371, 47257), (3199, 20253), (3297, 19651), (6751, 9597)]