21360208

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{18803}}^1$

素因数の和:18882

約数の個数: 20

約数和(自身を含む): 41970528

約数和(自身を除く): 20610320

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 18803, 37606, 75212, 150424, 300848, 1335013, 2670026, 5340052, 10680104, 21360208]

約数ペア:

[(1, 21360208), (2, 10680104), (4, 5340052), (8, 2670026), (16, 1335013), (71, 300848), (142, 150424), (284, 75212), (568, 37606), (1136, 18803)]