25131197

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:245

約数の個数: 32

約数和(自身を含む): 32659200

約数和(自身を除く): 7528003

約数列:

[1, 7, 13, 29, 89, 91, 107, 203, 377, 623, 749, 1157, 1391, 2581, 2639, 3103, 8099, 9523, 9737, 18067, 21721, 33553, 40339, 66661, 123799, 234871, 276167, 282373, 866593, 1933169, 3590171, 25131197]

約数ペア:

[(1, 25131197), (7, 3590171), (13, 1933169), (29, 866593), (89, 282373), (91, 276167), (107, 234871), (203, 123799), (377, 66661), (623, 40339), (749, 33553), (1157, 21721), (1391, 18067), (2581, 9737), (2639, 9523), (3103, 8099)]