221700017

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{11471}}^1$

素因数の和:11740

約数の個数: 16

約数和(自身を含む): 277530624

約数和(自身を除く): 55830607

約数列:

[1, 7, 11, 77, 251, 1757, 2761, 11471, 19327, 80297, 126181, 883267, 2879221, 20154547, 31671431, 221700017]

約数ペア:

[(1, 221700017), (7, 31671431), (11, 20154547), (77, 2879221), (251, 883267), (1757, 126181), (2761, 80297), (11471, 19327)]