20893887

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{8089}}^1$

素因数の和:8143

約数の個数: 24

約数和(自身を含む): 35337120

約数和(自身を除く): 14443233

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 8089, 24267, 56623, 72801, 169869, 331649, 509607, 994947, 2321543, 2984841, 6964629, 20893887]

約数ペア:

[(1, 20893887), (3, 6964629), (7, 2984841), (9, 2321543), (21, 994947), (41, 509607), (63, 331649), (123, 169869), (287, 72801), (369, 56623), (861, 24267), (2583, 8089)]