21338685

素因数分解:

$3^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{2741}}^1$

素因数の和:2925

約数の個数: 24

約数和(自身を含む): 37214424

約数和(自身を除く): 15875739

約数列:

[1, 3, 5, 9, 15, 45, 173, 519, 865, 1557, 2595, 2741, 7785, 8223, 13705, 24669, 41115, 123345, 474193, 1422579, 2370965, 4267737, 7112895, 21338685]

約数ペア:

[(1, 21338685), (3, 7112895), (5, 4267737), (9, 2370965), (15, 1422579), (45, 474193), (173, 123345), (519, 41115), (865, 24669), (1557, 13705), (2595, 8223), (2741, 7785)]