15931979

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{239}}^1$

素因数の和:442

約数の個数: 16

約数和(自身を含む): 18662400

約数和(自身を除く): 2730421

約数列:

[1, 7, 89, 107, 239, 623, 749, 1673, 9523, 21271, 25573, 66661, 148897, 179011, 2275997, 15931979]

約数ペア:

[(1, 15931979), (7, 2275997), (89, 179011), (107, 148897), (239, 66661), (623, 25573), (749, 21271), (1673, 9523)]