21564772

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{16691}}^1$

素因数の和:16731

約数の個数: 24

約数和(自身を含む): 42063840

約数和(自身を除く): 20499068

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 323, 646, 1292, 16691, 33382, 66764, 283747, 317129, 567494, 634258, 1134988, 1268516, 5391193, 10782386, 21564772]

約数ペア:

[(1, 21564772), (2, 10782386), (4, 5391193), (17, 1268516), (19, 1134988), (34, 634258), (38, 567494), (68, 317129), (76, 283747), (323, 66764), (646, 33382), (1292, 16691)]