38781981

素因数分解:

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

素因数の和:783

約数の個数: 48

約数和(自身を含む): 69264000

約数和(自身を除く): 30482019

約数列:

[1, 3, 7, 9, 17, 21, 49, 51, 63, 119, 147, 153, 343, 357, 441, 739, 833, 1029, 1071, 2217, 2499, 3087, 5173, 5831, 6651, 7497, 12563, 15519, 17493, 36211, 37689, 46557, 52479, 87941, 108633, 113067, 253477, 263823, 325899, 615587, 760431, 791469, 1846761, 2281293, 4309109, 5540283, 12927327, 38781981]

約数ペア:

[(1, 38781981), (3, 12927327), (7, 5540283), (9, 4309109), (17, 2281293), (21, 1846761), (49, 791469), (51, 760431), (63, 615587), (119, 325899), (147, 263823), (153, 253477), (343, 113067), (357, 108633), (441, 87941), (739, 52479), (833, 46557), (1029, 37689), (1071, 36211), (2217, 17493), (2499, 15519), (3087, 12563), (5173, 7497), (5831, 6651)]