428409

素因数分解:

$3^5\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:99

約数の個数: 24

約数和(自身を含む): 672672

約数和(自身を除く): 244263

約数列:

[1, 3, 9, 27, 41, 43, 81, 123, 129, 243, 369, 387, 1107, 1161, 1763, 3321, 3483, 5289, 9963, 10449, 15867, 47601, 142803, 428409]

約数ペア:

[(1, 428409), (3, 142803), (9, 47601), (27, 15867), (41, 10449), (43, 9963), (81, 5289), (123, 3483), (129, 3321), (243, 1763), (369, 1161), (387, 1107)]