20170773

素因数分解:

$3^2\times 7^1\times {\mathrm{353}}^1\times {\mathrm{907}}^1$

素因数の和:1273

約数の個数: 24

約数和(自身を含む): 33428928

約数和(自身を除く): 13258155

約数列:

[1, 3, 7, 9, 21, 63, 353, 907, 1059, 2471, 2721, 3177, 6349, 7413, 8163, 19047, 22239, 57141, 320171, 960513, 2241197, 2881539, 6723591, 20170773]

約数ペア:

[(1, 20170773), (3, 6723591), (7, 2881539), (9, 2241197), (21, 960513), (63, 320171), (353, 57141), (907, 22239), (1059, 19047), (2471, 8163), (2721, 7413), (3177, 6349)]