21880014

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{280513}}^1$

素因数の和:280531

約数の個数: 16

約数和(自身を含む): 47126352

約数和(自身を除く): 25246338

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 280513, 561026, 841539, 1683078, 3646669, 7293338, 10940007, 21880014]

約数ペア:

[(1, 21880014), (2, 10940007), (3, 7293338), (6, 3646669), (13, 1683078), (26, 841539), (39, 561026), (78, 280513)]