18670509

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 32235840

約数和(自身を除く): 13565331

約数列:

[1, 3, 9, 11, 13, 33, 39, 89, 99, 117, 143, 163, 267, 429, 489, 801, 979, 1157, 1287, 1467, 1793, 2119, 2937, 3471, 5379, 6357, 8811, 10413, 12727, 14507, 16137, 19071, 23309, 38181, 43521, 69927, 114543, 130563, 159577, 188591, 209781, 478731, 565773, 1436193, 1697319, 2074501, 6223503, 18670509]

約数ペア:

[(1, 18670509), (3, 6223503), (9, 2074501), (11, 1697319), (13, 1436193), (33, 565773), (39, 478731), (89, 209781), (99, 188591), (117, 159577), (143, 130563), (163, 114543), (267, 69927), (429, 43521), (489, 38181), (801, 23309), (979, 19071), (1157, 16137), (1287, 14507), (1467, 12727), (1793, 10413), (2119, 8811), (2937, 6357), (3471, 5379)]