21568929

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{2741}}^1$

素因数の和:2848

約数の個数: 16

約数和(自身を含む): 29920704

約数和(自身を除く): 8351775

約数列:

[1, 3, 43, 61, 129, 183, 2623, 2741, 7869, 8223, 117863, 167201, 353589, 501603, 7189643, 21568929]

約数ペア:

[(1, 21568929), (3, 7189643), (43, 501603), (61, 353589), (129, 167201), (183, 117863), (2623, 8223), (2741, 7869)]