293880921

素因数分解:

$3^1\times {\mathrm{17}}^3\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:338

約数の個数: 32

約数和(自身を含む): 422277120

約数和(自身を除く): 128396199

約数列:

[1, 3, 17, 51, 127, 157, 289, 381, 471, 867, 2159, 2669, 4913, 6477, 8007, 14739, 19939, 36703, 45373, 59817, 110109, 136119, 338963, 623951, 771341, 1016889, 1871853, 2314023, 5762371, 17287113, 97960307, 293880921]

約数ペア:

[(1, 293880921), (3, 97960307), (17, 17287113), (51, 5762371), (127, 2314023), (157, 1871853), (289, 1016889), (381, 771341), (471, 623951), (867, 338963), (2159, 136119), (2669, 110109), (4913, 59817), (6477, 45373), (8007, 36703), (14739, 19939)]