920409

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1069}}^1$

素因数の和:1120

約数の個数: 16

約数和(自身を含む): 1438080

約数和(自身を除く): 517671

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 1069, 3207, 7483, 22449, 43829, 131487, 306803, 920409]

約数ペア:

[(1, 920409), (3, 306803), (7, 131487), (21, 43829), (41, 22449), (123, 7483), (287, 3207), (861, 1069)]