21210669

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{5393}}^1$

素因数の和:5441

約数の個数: 24

約数和(自身を含む): 33658560

約数和(自身を除く): 12447891

約数列:

[1, 3, 9, 19, 23, 57, 69, 171, 207, 437, 1311, 3933, 5393, 16179, 48537, 102467, 124039, 307401, 372117, 922203, 1116351, 2356741, 7070223, 21210669]

約数ペア:

[(1, 21210669), (3, 7070223), (9, 2356741), (19, 1116351), (23, 922203), (57, 372117), (69, 307401), (171, 124039), (207, 102467), (437, 48537), (1311, 16179), (3933, 5393)]