19418654

素因数分解:

$2^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1\times {\mathrm{541}}^1$

素因数の和:811

約数の個数: 16

約数和(自身を含む): 29619216

約数和(自身を除く): 10200562

約数列:

[1, 2, 131, 137, 262, 274, 541, 1082, 17947, 35894, 70871, 74117, 141742, 148234, 9709327, 19418654]

約数ペア:

[(1, 19418654), (2, 9709327), (131, 148234), (137, 141742), (262, 74117), (274, 70871), (541, 35894), (1082, 17947)]