20547163

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:211

約数の個数: 32

約数和(自身を含む): 26611200

約数和(自身を除く): 6064037

約数列:

[1, 7, 13, 43, 59, 89, 91, 301, 413, 559, 623, 767, 1157, 2537, 3827, 3913, 5251, 5369, 8099, 17759, 26789, 32981, 36757, 49751, 68263, 225793, 230867, 348257, 477841, 1580551, 2935309, 20547163]

約数ペア:

[(1, 20547163), (7, 2935309), (13, 1580551), (43, 477841), (59, 348257), (89, 230867), (91, 225793), (301, 68263), (413, 49751), (559, 36757), (623, 32981), (767, 26789), (1157, 17759), (2537, 8099), (3827, 5369), (3913, 5251)]