15156421

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{421}}^1$

素因数の和:604

約数の個数: 16

約数和(自身を含む): 17960320

約数和(自身を除く): 2803899

約数列:

[1, 7, 37, 139, 259, 421, 973, 2947, 5143, 15577, 36001, 58519, 109039, 409633, 2165203, 15156421]

約数ペア:

[(1, 15156421), (7, 2165203), (37, 409633), (139, 109039), (259, 58519), (421, 36001), (973, 15577), (2947, 5143)]