21268077

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:281

約数の個数: 32

約数和(自身を含む): 31236096

約数和(自身を除く): 9968019

約数列:

[1, 3, 23, 31, 61, 69, 93, 163, 183, 489, 713, 1403, 1891, 2139, 3749, 4209, 5053, 5673, 9943, 11247, 15159, 29829, 43493, 116219, 130479, 228689, 308233, 348657, 686067, 924699, 7089359, 21268077]

約数ペア:

[(1, 21268077), (3, 7089359), (23, 924699), (31, 686067), (61, 348657), (69, 308233), (93, 228689), (163, 130479), (183, 116219), (489, 43493), (713, 29829), (1403, 15159), (1891, 11247), (2139, 9943), (3749, 5673), (4209, 5053)]