19954701

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{409}}^1$

素因数の和:570

約数の個数: 32

約数和(自身を含む): 32144000

約数和(自身を除く): 12189299

約数列:

[1, 3, 9, 13, 27, 39, 117, 139, 351, 409, 417, 1227, 1251, 1807, 3681, 3753, 5317, 5421, 11043, 15951, 16263, 47853, 48789, 56851, 143559, 170553, 511659, 739063, 1534977, 2217189, 6651567, 19954701]

約数ペア:

[(1, 19954701), (3, 6651567), (9, 2217189), (13, 1534977), (27, 739063), (39, 511659), (117, 170553), (139, 143559), (351, 56851), (409, 48789), (417, 47853), (1227, 16263), (1251, 15951), (1807, 11043), (3681, 5421), (3753, 5317)]