20830975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{359}}^1$

素因数の和:591

約数の個数: 24

約数和(自身を含む): 28391040

約数和(自身を除く): 7560065

約数列:

[1, 5, 11, 25, 55, 211, 275, 359, 1055, 1795, 2321, 3949, 5275, 8975, 11605, 19745, 58025, 75749, 98725, 378745, 833239, 1893725, 4166195, 20830975]

約数ペア:

[(1, 20830975), (5, 4166195), (11, 1893725), (25, 833239), (55, 378745), (211, 98725), (275, 75749), (359, 58025), (1055, 19745), (1795, 11605), (2321, 8975), (3949, 5275)]