81259255

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{211063}}^1$

素因数の和:211086

約数の個数: 16

約数和(自身を含む): 121572864

約数和(自身を除く): 40313609

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 211063, 1055315, 1477441, 2321693, 7387205, 11608465, 16251851, 81259255]

約数ペア:

[(1, 81259255), (5, 16251851), (7, 11608465), (11, 7387205), (35, 2321693), (55, 1477441), (77, 1055315), (385, 211063)]