19328706

素因数分解:

$2^1\times 3^9\times {\mathrm{491}}^1$

素因数の和:520

約数の個数: 40

約数和(自身を含む): 43577424

約数和(自身を除く): 24248718

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 486, 491, 729, 982, 1458, 1473, 2187, 2946, 4374, 4419, 6561, 8838, 13122, 13257, 19683, 26514, 39366, 39771, 79542, 119313, 238626, 357939, 715878, 1073817, 2147634, 3221451, 6442902, 9664353, 19328706]

約数ペア:

[(1, 19328706), (2, 9664353), (3, 6442902), (6, 3221451), (9, 2147634), (18, 1073817), (27, 715878), (54, 357939), (81, 238626), (162, 119313), (243, 79542), (486, 39771), (491, 39366), (729, 26514), (982, 19683), (1458, 13257), (1473, 13122), (2187, 8838), (2946, 6561), (4374, 4419)]