17840979

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{16943}}^1$

素因数の和:16968

約数の個数: 20

約数和(自身を含む): 28703136

約数和(自身を除く): 10862157

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 16943, 50829, 152487, 220259, 457461, 660777, 1372383, 1982331, 5946993, 17840979]

約数ペア:

[(1, 17840979), (3, 5946993), (9, 1982331), (13, 1372383), (27, 660777), (39, 457461), (81, 220259), (117, 152487), (351, 50829), (1053, 16943)]