8991745

素因数分解:

$5^1\times 7^5\times {\mathrm{107}}^1$

素因数の和:147

約数の個数: 24

約数和(自身を含む): 12705984

約数和(自身を除く): 3714239

約数列:

[1, 5, 7, 35, 49, 107, 245, 343, 535, 749, 1715, 2401, 3745, 5243, 12005, 16807, 26215, 36701, 84035, 183505, 256907, 1284535, 1798349, 8991745]

約数ペア:

[(1, 8991745), (5, 1798349), (7, 1284535), (35, 256907), (49, 183505), (107, 84035), (245, 36701), (343, 26215), (535, 16807), (749, 12005), (1715, 5243), (2401, 3745)]