645147447

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{31063}}^1$

素因数の和:31139

約数の個数: 32

約数和(自身を含む): 1049714688

約数和(自身を除く): 404567241

約数列:

[1, 3, 7, 21, 23, 43, 69, 129, 161, 301, 483, 903, 989, 2967, 6923, 20769, 31063, 93189, 217441, 652323, 714449, 1335709, 2143347, 4007127, 5001143, 9349963, 15003429, 28049889, 30721307, 92163921, 215049149, 645147447]

約数ペア:

[(1, 645147447), (3, 215049149), (7, 92163921), (21, 30721307), (23, 28049889), (43, 15003429), (69, 9349963), (129, 5001143), (161, 4007127), (301, 2143347), (483, 1335709), (903, 714449), (989, 652323), (2967, 217441), (6923, 93189), (20769, 31063)]