221427981

素因数分解:

$3^2\times {\mathrm{83}}^1\times {\mathrm{461}}^1\times {\mathrm{643}}^1$

素因数の和:1193

約数の個数: 24

約数和(自身を含む): 324900576

約数和(自身を除く): 103472595

約数列:

[1, 3, 9, 83, 249, 461, 643, 747, 1383, 1929, 4149, 5787, 38263, 53369, 114789, 160107, 296423, 344367, 480321, 889269, 2667807, 24603109, 73809327, 221427981]

約数ペア:

[(1, 221427981), (3, 73809327), (9, 24603109), (83, 2667807), (249, 889269), (461, 480321), (643, 344367), (747, 296423), (1383, 160107), (1929, 114789), (4149, 53369), (5787, 38263)]