642213

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{499}}^1$

素因数の和:529

約数の個数: 24

約数和(自身を含む): 1092000

約数和(自身を除く): 449787

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 143, 429, 499, 1287, 1497, 4491, 5489, 6487, 16467, 19461, 49401, 58383, 71357, 214071, 642213]

約数ペア:

[(1, 642213), (3, 214071), (9, 71357), (11, 58383), (13, 49401), (33, 19461), (39, 16467), (99, 6487), (117, 5489), (143, 4491), (429, 1497), (499, 1287)]