128037903

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{1439}}^1$

素因数の和:1691

約数の個数: 32

約数和(自身を含む): 206438400

約数和(自身を除く): 78400497

約数列:

[1, 3, 7, 19, 21, 57, 133, 223, 399, 669, 1439, 1561, 4237, 4317, 4683, 10073, 12711, 27341, 29659, 30219, 82023, 88977, 191387, 320897, 574161, 962691, 2246279, 6097043, 6738837, 18291129, 42679301, 128037903]

約数ペア:

[(1, 128037903), (3, 42679301), (7, 18291129), (19, 6738837), (21, 6097043), (57, 2246279), (133, 962691), (223, 574161), (399, 320897), (669, 191387), (1439, 88977), (1561, 82023), (4237, 30219), (4317, 29659), (4683, 27341), (10073, 12711)]