1428021

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1193}}^1$

素因数の和:1225

約数の個数: 24

約数和(自身を含む): 2483520

約数和(自身を除く): 1055499

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1193, 1197, 3579, 8351, 10737, 22667, 25053, 68001, 75159, 158669, 204003, 476007, 1428021]

約数ペア:

[(1, 1428021), (3, 476007), (7, 204003), (9, 158669), (19, 75159), (21, 68001), (57, 25053), (63, 22667), (133, 10737), (171, 8351), (399, 3579), (1193, 1197)]