21069244

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{18353}}^1$

素因数の和:18405

約数の個数: 24

約数和(自身を含む): 43168608

約数和(自身を除く): 22099364

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 18353, 36706, 73412, 128471, 256942, 513884, 752473, 1504946, 3009892, 5267311, 10534622, 21069244]

約数ペア:

[(1, 21069244), (2, 10534622), (4, 5267311), (7, 3009892), (14, 1504946), (28, 752473), (41, 513884), (82, 256942), (164, 128471), (287, 73412), (574, 36706), (1148, 18353)]