21921018

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{521929}}^1$

素因数の和:521941

約数の個数: 16

約数和(自身を含む): 50105280

約数和(自身を除く): 28184262

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 521929, 1043858, 1565787, 3131574, 3653503, 7307006, 10960509, 21921018]

約数ペア:

[(1, 21921018), (2, 10960509), (3, 7307006), (6, 3653503), (7, 3131574), (14, 1565787), (21, 1043858), (42, 521929)]