291273003

素因数分解:

$3^4\times 7^2\times {\mathrm{73387}}^1$

素因数の和:73413

約数の個数: 30

約数和(自身を含む): 506157036

約数和(自身を除く): 214884033

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 73387, 220161, 513709, 660483, 1541127, 1981449, 3595963, 4623381, 5944347, 10787889, 13870143, 32363667, 41610429, 97091001, 291273003]

約数ペア:

[(1, 291273003), (3, 97091001), (7, 41610429), (9, 32363667), (21, 13870143), (27, 10787889), (49, 5944347), (63, 4623381), (81, 3595963), (147, 1981449), (189, 1541127), (441, 660483), (567, 513709), (1323, 220161), (3969, 73387)]