221361679

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{18311}}^1$

素因数の和:18486

約数の個数: 16

約数和(自身を含む): 277756416

約数和(自身を除く): 56394737

約数列:

[1, 7, 11, 77, 157, 1099, 1727, 12089, 18311, 128177, 201421, 1409947, 2874827, 20123789, 31623097, 221361679]

約数ペア:

[(1, 221361679), (7, 31623097), (11, 20123789), (77, 2874827), (157, 1409947), (1099, 201421), (1727, 128177), (12089, 18311)]