128641513

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1669}}^1$

素因数の和:1718

約数の個数: 36

約数和(自身を含む): 177243780

約数和(自身を除く): 48602267

約数列:

[1, 7, 11, 13, 49, 77, 91, 121, 143, 539, 637, 847, 1001, 1573, 1669, 5929, 7007, 11011, 11683, 18359, 21697, 77077, 81781, 128513, 151879, 201949, 238667, 899591, 1063153, 1413643, 1670669, 2625337, 9895501, 11694683, 18377359, 128641513]

約数ペア:

[(1, 128641513), (7, 18377359), (11, 11694683), (13, 9895501), (49, 2625337), (77, 1670669), (91, 1413643), (121, 1063153), (143, 899591), (539, 238667), (637, 201949), (847, 151879), (1001, 128513), (1573, 81781), (1669, 77077), (5929, 21697), (7007, 18359), (11011, 11683)]