16903971

素因数分解:

$3^4\times 7^2\times {\mathrm{4259}}^1$

素因数の和:4285

約数の個数: 30

約数和(自身を含む): 29381220

約数和(自身を除く): 12477249

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 4259, 12777, 29813, 38331, 89439, 114993, 208691, 268317, 344979, 626073, 804951, 1878219, 2414853, 5634657, 16903971]

約数ペア:

[(1, 16903971), (3, 5634657), (7, 2414853), (9, 1878219), (21, 804951), (27, 626073), (49, 344979), (63, 268317), (81, 208691), (147, 114993), (189, 89439), (441, 38331), (567, 29813), (1323, 12777), (3969, 4259)]