19996304

素因数分解:

$2^4\times {\mathrm{349}}^1\times {\mathrm{3581}}^1$

素因数の和:3938

約数の個数: 20

約数和(自身を含む): 38864700

約数和(自身を除く): 18868396

約数列:

[1, 2, 4, 8, 16, 349, 698, 1396, 2792, 3581, 5584, 7162, 14324, 28648, 57296, 1249769, 2499538, 4999076, 9998152, 19996304]

約数ペア:

[(1, 19996304), (2, 9998152), (4, 4999076), (8, 2499538), (16, 1249769), (349, 57296), (698, 28648), (1396, 14324), (2792, 7162), (3581, 5584)]