20205141

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{491}}^1$

素因数の和:577

約数の個数: 32

約数和(自身を含む): 31173120

約数和(自身を除く): 10967979

約数列:

[1, 3, 11, 29, 33, 43, 87, 129, 319, 473, 491, 957, 1247, 1419, 1473, 3741, 5401, 13717, 14239, 16203, 21113, 41151, 42717, 63339, 156629, 232243, 469887, 612277, 696729, 1836831, 6735047, 20205141]

約数ペア:

[(1, 20205141), (3, 6735047), (11, 1836831), (29, 696729), (33, 612277), (43, 469887), (87, 232243), (129, 156629), (319, 63339), (473, 42717), (491, 41151), (957, 21113), (1247, 16203), (1419, 14239), (1473, 13717), (3741, 5401)]