217424557

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{349}}^1\times {\mathrm{1459}}^1$

素因数の和:1876

約数の個数: 16

約数和(自身を含む): 253456000

約数和(自身を除く): 36031443

約数列:

[1, 7, 61, 349, 427, 1459, 2443, 10213, 21289, 88999, 149023, 509191, 622993, 3564337, 31060651, 217424557]

約数ペア:

[(1, 217424557), (7, 31060651), (61, 3564337), (349, 622993), (427, 509191), (1459, 149023), (2443, 88999), (10213, 21289)]