287212821

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{192631}}^1$

素因数の和:192712

約数の個数: 16

約数和(自身を含む): 443824128

約数和(自身を除く): 156611307

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 192631, 577893, 1348417, 4045251, 13676801, 41030403, 95737607, 287212821]

約数ペア:

[(1, 287212821), (3, 95737607), (7, 41030403), (21, 13676801), (71, 4045251), (213, 1348417), (497, 577893), (1491, 192631)]