1978353

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{457}}^1$

素因数の和:513

約数の個数: 24

約数和(自身を含む): 3167528

約数和(自身を除く): 1189175

約数列:

[1, 3, 9, 13, 37, 39, 111, 117, 333, 457, 481, 1371, 1443, 4113, 4329, 5941, 16909, 17823, 50727, 53469, 152181, 219817, 659451, 1978353]

約数ペア:

[(1, 1978353), (3, 659451), (9, 219817), (13, 152181), (37, 53469), (39, 50727), (111, 17823), (117, 16909), (333, 5941), (457, 4329), (481, 4113), (1371, 1443)]