221902079

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{3967}}^1$

素因数の和:4166

約数の個数: 16

約数和(自身を含む): 259792896

約数和(自身を除く): 37890817

約数列:

[1, 7, 61, 131, 427, 917, 3967, 7991, 27769, 55937, 241987, 519677, 1693909, 3637739, 31700297, 221902079]

約数ペア:

[(1, 221902079), (7, 31700297), (61, 3637739), (131, 1693909), (427, 519677), (917, 241987), (3967, 55937), (7991, 27769)]