21930831

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{353}}^1$

素因数の和:437

約数の個数: 40

約数和(自身を含む): 35980560

約数和(自身を除く): 14049729

約数列:

[1, 3, 9, 13, 27, 39, 59, 81, 117, 177, 351, 353, 531, 767, 1053, 1059, 1593, 2301, 3177, 4589, 4779, 6903, 9531, 13767, 20709, 20827, 28593, 41301, 62127, 62481, 123903, 187443, 270751, 371709, 562329, 812253, 1686987, 2436759, 7310277, 21930831]

約数ペア:

[(1, 21930831), (3, 7310277), (9, 2436759), (13, 1686987), (27, 812253), (39, 562329), (59, 371709), (81, 270751), (117, 187443), (177, 123903), (351, 62481), (353, 62127), (531, 41301), (767, 28593), (1053, 20827), (1059, 20709), (1593, 13767), (2301, 9531), (3177, 6903), (4589, 4779)]