39994591

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{251}}^1$

素因数の和:391

約数の個数: 32

約数和(自身を含む): 52835328

約数和(自身を除く): 12840737

約数列:

[1, 7, 13, 17, 91, 103, 119, 221, 251, 721, 1339, 1547, 1751, 1757, 3263, 4267, 9373, 12257, 22763, 22841, 25853, 29869, 55471, 159341, 180971, 336089, 388297, 439501, 2352623, 3076507, 5713513, 39994591]

約数ペア:

[(1, 39994591), (7, 5713513), (13, 3076507), (17, 2352623), (91, 439501), (103, 388297), (119, 336089), (221, 180971), (251, 159341), (721, 55471), (1339, 29869), (1547, 25853), (1751, 22841), (1757, 22763), (3263, 12257), (4267, 9373)]