20674758

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{661}}^1$

素因数の和:1080

約数の個数: 32

約数和(自身を含む): 44708832

約数和(自身を除く): 24034074

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 401, 661, 802, 1203, 1322, 1983, 2406, 3966, 5213, 8593, 10426, 15639, 17186, 25779, 31278, 51558, 265061, 530122, 795183, 1590366, 3445793, 6891586, 10337379, 20674758]

約数ペア:

[(1, 20674758), (2, 10337379), (3, 6891586), (6, 3445793), (13, 1590366), (26, 795183), (39, 530122), (78, 265061), (401, 51558), (661, 31278), (802, 25779), (1203, 17186), (1322, 15639), (1983, 10426), (2406, 8593), (3966, 5213)]