221285181

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{1039}}^1$

素因数の和:1225

約数の個数: 32

約数和(自身を含む): 328007680

約数和(自身を除く): 106722499

約数列:

[1, 3, 13, 39, 43, 127, 129, 381, 559, 1039, 1651, 1677, 3117, 4953, 5461, 13507, 16383, 40521, 44677, 70993, 131953, 134031, 212979, 395859, 580801, 1715389, 1742403, 5146167, 5673979, 17021937, 73761727, 221285181]

約数ペア:

[(1, 221285181), (3, 73761727), (13, 17021937), (39, 5673979), (43, 5146167), (127, 1742403), (129, 1715389), (381, 580801), (559, 395859), (1039, 212979), (1651, 134031), (1677, 131953), (3117, 70993), (4953, 44677), (5461, 40521), (13507, 16383)]