21131036381

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{839}}^1\times {\mathrm{4691}}^1$

素因数の和:5609

約数の個数: 32

約数和(自身を含む): 26485401600

約数和(自身を除く): 5354365219

約数列:

[1, 7, 13, 59, 91, 413, 767, 839, 4691, 5369, 5873, 10907, 32837, 49501, 60983, 76349, 276769, 346507, 426881, 643513, 1937383, 3597997, 3935749, 4504591, 25185979, 27550243, 51164737, 232209191, 358153159, 1625464337, 3018719483, 21131036381]

約数ペア:

[(1, 21131036381), (7, 3018719483), (13, 1625464337), (59, 358153159), (91, 232209191), (413, 51164737), (767, 27550243), (839, 25185979), (4691, 4504591), (5369, 3935749), (5873, 3597997), (10907, 1937383), (32837, 643513), (49501, 426881), (60983, 346507), (76349, 276769)]