20192841

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1$

素因数の和:302

約数の個数: 32

約数和(自身を含む): 31000320

約数和(自身を除く): 10807479

約数列:

[1, 3, 9, 27, 53, 103, 137, 159, 309, 411, 477, 927, 1233, 1431, 2781, 3699, 5459, 7261, 14111, 16377, 21783, 42333, 49131, 65349, 126999, 147393, 196047, 380997, 747883, 2243649, 6730947, 20192841]

約数ペア:

[(1, 20192841), (3, 6730947), (9, 2243649), (27, 747883), (53, 380997), (103, 196047), (137, 147393), (159, 126999), (309, 65349), (411, 49131), (477, 42333), (927, 21783), (1233, 16377), (1431, 14111), (2781, 7261), (3699, 5459)]