21987735

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19037}}^1$

素因数の和:19063

約数の個数: 32

約数和(自身を含む): 43863552

約数和(自身を除く): 21875817

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155, 19037, 57111, 95185, 133259, 209407, 285555, 399777, 628221, 666295, 1047035, 1465849, 1998885, 3141105, 4397547, 7329245, 21987735]

約数ペア:

[(1, 21987735), (3, 7329245), (5, 4397547), (7, 3141105), (11, 1998885), (15, 1465849), (21, 1047035), (33, 666295), (35, 628221), (55, 399777), (77, 285555), (105, 209407), (165, 133259), (231, 95185), (385, 57111), (1155, 19037)]