20640972

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{156371}}^1$

素因数の和:156389

約数の個数: 24

約数和(自身を含む): 52540992

約数和(自身を除く): 31900020

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 156371, 312742, 469113, 625484, 938226, 1720081, 1876452, 3440162, 5160243, 6880324, 10320486, 20640972]

約数ペア:

[(1, 20640972), (2, 10320486), (3, 6880324), (4, 5160243), (6, 3440162), (11, 1876452), (12, 1720081), (22, 938226), (33, 625484), (44, 469113), (66, 312742), (132, 156371)]