21697191

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{1409}}^1$

素因数の和:1503

約数の個数: 24

約数和(自身を含む): 32994000

約数和(自身を除く): 11296809

約数列:

[1, 3, 9, 29, 59, 87, 177, 261, 531, 1409, 1711, 4227, 5133, 12681, 15399, 40861, 83131, 122583, 249393, 367749, 748179, 2410799, 7232397, 21697191]

約数ペア:

[(1, 21697191), (3, 7232397), (9, 2410799), (29, 748179), (59, 367749), (87, 249393), (177, 122583), (261, 83131), (531, 40861), (1409, 15399), (1711, 12681), (4227, 5133)]