18803407

素因数分解:

$7^2\times {\mathrm{19}}^2\times {\mathrm{1063}}^1$

素因数の和:1115

約数の個数: 18

約数和(自身を含む): 23106888

約数和(自身を除く): 4303481

約数列:

[1, 7, 19, 49, 133, 361, 931, 1063, 2527, 7441, 17689, 20197, 52087, 141379, 383743, 989653, 2686201, 18803407]

約数ペア:

[(1, 18803407), (7, 2686201), (19, 989653), (49, 383743), (133, 141379), (361, 52087), (931, 20197), (1063, 17689), (2527, 7441)]