21557949

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{16829}}^1$

素因数の和:16900

約数の個数: 16

約数和(自身を含む): 33390720

約数和(自身を除く): 11832771

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 16829, 50487, 117803, 353409, 1026569, 3079707, 7185983, 21557949]

約数ペア:

[(1, 21557949), (3, 7185983), (7, 3079707), (21, 1026569), (61, 353409), (183, 117803), (427, 50487), (1281, 16829)]