21958538

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{42391}}^1$

素因数の和:42437

約数の個数: 16

約数和(自身を含む): 38661504

約数和(自身を除く): 16702966

約数列:

[1, 2, 7, 14, 37, 74, 259, 518, 42391, 84782, 296737, 593474, 1568467, 3136934, 10979269, 21958538]

約数ペア:

[(1, 21958538), (2, 10979269), (7, 3136934), (14, 1568467), (37, 593474), (74, 296737), (259, 84782), (518, 42391)]