2728761

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{977}}^1$

素因数の和:1013

約数の個数: 24

約数和(自身を含む): 4459680

約数和(自身を除く): 1730919

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 977, 2793, 2931, 6839, 18563, 20517, 47873, 55689, 129941, 143619, 389823, 909587, 2728761]

約数ペア:

[(1, 2728761), (3, 909587), (7, 389823), (19, 143619), (21, 129941), (49, 55689), (57, 47873), (133, 20517), (147, 18563), (399, 6839), (931, 2931), (977, 2793)]