21513018

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{67651}}^1$

素因数の和:67709

約数の個数: 16

約数和(自身を含む): 43838496

約数和(自身を除く): 22325478

約数列:

[1, 2, 3, 6, 53, 106, 159, 318, 67651, 135302, 202953, 405906, 3585503, 7171006, 10756509, 21513018]

約数ペア:

[(1, 21513018), (2, 10756509), (3, 7171006), (6, 3585503), (53, 405906), (106, 202953), (159, 135302), (318, 67651)]