19724067

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 33126912

約数和(自身を除く): 13402845

約数列:

[1, 3, 9, 11, 27, 33, 47, 81, 99, 141, 157, 243, 297, 423, 471, 517, 891, 1269, 1413, 1551, 1727, 2673, 3807, 4239, 4653, 5181, 7379, 11421, 12717, 13959, 15543, 22137, 38151, 41877, 46629, 66411, 81169, 125631, 139887, 199233, 243507, 419661, 597699, 730521, 1793097, 2191563, 6574689, 19724067]

約数ペア:

[(1, 19724067), (3, 6574689), (9, 2191563), (11, 1793097), (27, 730521), (33, 597699), (47, 419661), (81, 243507), (99, 199233), (141, 139887), (157, 125631), (243, 81169), (297, 66411), (423, 46629), (471, 41877), (517, 38151), (891, 22137), (1269, 15543), (1413, 13959), (1551, 12717), (1727, 11421), (2673, 7379), (3807, 5181), (4239, 4653)]