18203787

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{739}}^1$

素因数の和:792

約数の個数: 48

約数和(自身を含む): 33246720

約数和(自身を除く): 15042933

約数列:

[1, 3, 7, 9, 17, 21, 23, 51, 63, 69, 119, 153, 161, 207, 357, 391, 483, 739, 1071, 1173, 1449, 2217, 2737, 3519, 5173, 6651, 8211, 12563, 15519, 16997, 24633, 37689, 46557, 50991, 87941, 113067, 118979, 152973, 263823, 288949, 356937, 791469, 866847, 1070811, 2022643, 2600541, 6067929, 18203787]

約数ペア:

[(1, 18203787), (3, 6067929), (7, 2600541), (9, 2022643), (17, 1070811), (21, 866847), (23, 791469), (51, 356937), (63, 288949), (69, 263823), (119, 152973), (153, 118979), (161, 113067), (207, 87941), (357, 50991), (391, 46557), (483, 37689), (739, 24633), (1071, 16997), (1173, 15519), (1449, 12563), (2217, 8211), (2737, 6651), (3519, 5173)]