221283357

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1\times {\mathrm{4139}}^1$

素因数の和:4464

約数の個数: 16

約数和(自身を含む): 300464640

約数和(自身を除く): 79181283

約数列:

[1, 3, 71, 213, 251, 753, 4139, 12417, 17821, 53463, 293869, 881607, 1038889, 3116667, 73761119, 221283357]

約数ペア:

[(1, 221283357), (3, 73761119), (71, 3116667), (213, 1038889), (251, 881607), (753, 293869), (4139, 53463), (12417, 17821)]