18291789

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{521}}^1$

素因数の和:657

約数の個数: 24

約数和(自身を含む): 27361152

約数和(自身を除く): 9069363

約数列:

[1, 3, 9, 47, 83, 141, 249, 423, 521, 747, 1563, 3901, 4689, 11703, 24487, 35109, 43243, 73461, 129729, 220383, 389187, 2032421, 6097263, 18291789]

約数ペア:

[(1, 18291789), (3, 6097263), (9, 2032421), (47, 389187), (83, 220383), (141, 129729), (249, 73461), (423, 43243), (521, 35109), (747, 24487), (1563, 11703), (3901, 4689)]