18733563

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1543}}^1$

素因数の和:1639

約数の個数: 24

約数和(自身を含む): 28903680

約数和(自身を除く): 10170117

約数列:

[1, 3, 9, 19, 57, 71, 171, 213, 639, 1349, 1543, 4047, 4629, 12141, 13887, 29317, 87951, 109553, 263853, 328659, 985977, 2081507, 6244521, 18733563]

約数ペア:

[(1, 18733563), (3, 6244521), (9, 2081507), (19, 985977), (57, 328659), (71, 263853), (171, 109553), (213, 87951), (639, 29317), (1349, 13887), (1543, 12141), (4047, 4629)]