207826017

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{139387}}^1$

素因数の和:139468

約数の個数: 16

約数和(自身を含む): 321149952

約数和(自身を除く): 113323935

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 139387, 418161, 975709, 2927127, 9896477, 29689431, 69275339, 207826017]

約数ペア:

[(1, 207826017), (3, 69275339), (7, 29689431), (21, 9896477), (71, 2927127), (213, 975709), (497, 418161), (1491, 139387)]