20127339

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1$

素因数の和:352

約数の個数: 32

約数和(自身を含む): 31180800

約数和(自身を除く): 11053461

約数列:

[1, 3, 9, 27, 31, 93, 139, 173, 279, 417, 519, 837, 1251, 1557, 3753, 4309, 4671, 5363, 12927, 16089, 24047, 38781, 48267, 72141, 116343, 144801, 216423, 649269, 745457, 2236371, 6709113, 20127339]

約数ペア:

[(1, 20127339), (3, 6709113), (9, 2236371), (27, 745457), (31, 649269), (93, 216423), (139, 144801), (173, 116343), (279, 72141), (417, 48267), (519, 38781), (837, 24047), (1251, 16089), (1557, 12927), (3753, 5363), (4309, 4671)]