19931639

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:239

約数の個数: 32

約数和(自身を含む): 26127360

約数和(自身を除く): 6195721

約数列:

[1, 7, 13, 23, 89, 91, 107, 161, 299, 623, 749, 1157, 1391, 2047, 2093, 2461, 8099, 9523, 9737, 14329, 17227, 26611, 31993, 66661, 123799, 186277, 219029, 223951, 866593, 1533203, 2847377, 19931639]

約数ペア:

[(1, 19931639), (7, 2847377), (13, 1533203), (23, 866593), (89, 223951), (91, 219029), (107, 186277), (161, 123799), (299, 66661), (623, 31993), (749, 26611), (1157, 17227), (1391, 14329), (2047, 9737), (2093, 9523), (2461, 8099)]