81815558

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{195731}}^1$

素因数の和:195763

約数の個数: 16

約数和(自身を含む): 140927040

約数和(自身を除く): 59111482

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 195731, 391462, 2153041, 3718889, 4306082, 7437778, 40907779, 81815558]

約数ペア:

[(1, 81815558), (2, 40907779), (11, 7437778), (19, 4306082), (22, 3718889), (38, 2153041), (209, 391462), (418, 195731)]