18415917

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{17489}}^1$

素因数の和:17514

約数の個数: 20

約数和(自身を含む): 29628060

約数和(自身を除く): 11212143

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 17489, 52467, 157401, 227357, 472203, 682071, 1416609, 2046213, 6138639, 18415917]

約数ペア:

[(1, 18415917), (3, 6138639), (9, 2046213), (13, 1416609), (27, 682071), (39, 472203), (81, 227357), (117, 157401), (351, 52467), (1053, 17489)]