21490314

素因数分解:

$2^1\times 3^1\times {\mathrm{41}}^1\times {\mathrm{87359}}^1$

素因数の和:87405

約数の個数: 16

約数和(自身を含む): 44029440

約数和(自身を除く): 22539126

約数列:

[1, 2, 3, 6, 41, 82, 123, 246, 87359, 174718, 262077, 524154, 3581719, 7163438, 10745157, 21490314]

約数ペア:

[(1, 21490314), (2, 10745157), (3, 7163438), (6, 3581719), (41, 524154), (82, 262077), (123, 174718), (246, 87359)]