21497061

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{307}}^1\times {\mathrm{1373}}^1$

素因数の和:1700

約数の個数: 16

約数和(自身を含む): 30469824

約数和(自身を除く): 8972763

約数列:

[1, 3, 17, 51, 307, 921, 1373, 4119, 5219, 15657, 23341, 70023, 421511, 1264533, 7165687, 21497061]

約数ペア:

[(1, 21497061), (3, 7165687), (17, 1264533), (51, 421511), (307, 70023), (921, 23341), (1373, 15657), (4119, 5219)]