21859270

素因数分解:

$2^1\times 5^1\times {\mathrm{661}}^1\times {\mathrm{3307}}^1$

素因数の和:3975

約数の個数: 16

約数和(自身を含む): 39418128

約数和(自身を除く): 17558858

約数列:

[1, 2, 5, 10, 661, 1322, 3305, 3307, 6610, 6614, 16535, 33070, 2185927, 4371854, 10929635, 21859270]

約数ペア:

[(1, 21859270), (2, 10929635), (5, 4371854), (10, 2185927), (661, 33070), (1322, 16535), (3305, 6614), (3307, 6610)]