18418862

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:245

約数の個数: 48

約数和(自身を含む): 35392896

約数和(自身を除く): 16974034

約数列:

[1, 2, 7, 11, 14, 22, 77, 83, 121, 131, 154, 166, 242, 262, 581, 847, 913, 917, 1162, 1441, 1694, 1826, 1834, 2882, 6391, 10043, 10087, 10873, 12782, 15851, 20086, 20174, 21746, 31702, 70301, 76111, 110957, 119603, 140602, 152222, 221914, 239206, 837221, 1315633, 1674442, 2631266, 9209431, 18418862]

約数ペア:

[(1, 18418862), (2, 9209431), (7, 2631266), (11, 1674442), (14, 1315633), (22, 837221), (77, 239206), (83, 221914), (121, 152222), (131, 140602), (154, 119603), (166, 110957), (242, 76111), (262, 70301), (581, 31702), (847, 21746), (913, 20174), (917, 20086), (1162, 15851), (1441, 12782), (1694, 10873), (1826, 10087), (1834, 10043), (2882, 6391)]