19991026

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{599}}^1$

素因数の和:690

約数の個数: 32

約数和(自身を含む): 34473600

約数和(自身を除く): 14482574

約数列:

[1, 2, 11, 22, 37, 41, 74, 82, 407, 451, 599, 814, 902, 1198, 1517, 3034, 6589, 13178, 16687, 22163, 24559, 33374, 44326, 49118, 243793, 270149, 487586, 540298, 908683, 1817366, 9995513, 19991026]

約数ペア:

[(1, 19991026), (2, 9995513), (11, 1817366), (22, 908683), (37, 540298), (41, 487586), (74, 270149), (82, 243793), (407, 49118), (451, 44326), (599, 33374), (814, 24559), (902, 22163), (1198, 16687), (1517, 13178), (3034, 6589)]