18008998

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{857}}^1$

素因数の和:964

約数の個数: 32

約数和(自身を含む): 32947200

約数和(自身を除く): 14938202

約数列:

[1, 2, 7, 14, 19, 38, 79, 133, 158, 266, 553, 857, 1106, 1501, 1714, 3002, 5999, 10507, 11998, 16283, 21014, 32566, 67703, 113981, 135406, 227962, 473921, 947842, 1286357, 2572714, 9004499, 18008998]

約数ペア:

[(1, 18008998), (2, 9004499), (7, 2572714), (14, 1286357), (19, 947842), (38, 473921), (79, 227962), (133, 135406), (158, 113981), (266, 67703), (553, 32566), (857, 21014), (1106, 16283), (1501, 11998), (1714, 10507), (3002, 5999)]