678291279

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{449}}^1\times {\mathrm{1559}}^1$

素因数の和:2047

約数の個数: 32

約数和(自身を含む): 1010880000

約数和(自身を除く): 332588721

約数列:

[1, 3, 17, 19, 51, 57, 323, 449, 969, 1347, 1559, 4677, 7633, 8531, 22899, 25593, 26503, 29621, 79509, 88863, 145027, 435081, 503557, 699991, 1510671, 2099973, 11899847, 13299829, 35699541, 39899487, 226097093, 678291279]

約数ペア:

[(1, 678291279), (3, 226097093), (17, 39899487), (19, 35699541), (51, 13299829), (57, 11899847), (323, 2099973), (449, 1510671), (969, 699991), (1347, 503557), (1559, 435081), (4677, 145027), (7633, 88863), (8531, 79509), (22899, 29621), (25593, 26503)]