197689921

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1153}}^1$

素因数の和:1297

約数の個数: 24

約数和(自身を含む): 236362280

約数和(自身を除く): 38672359

約数列:

[1, 11, 13, 109, 121, 143, 1153, 1199, 1417, 1573, 12683, 13189, 14989, 15587, 125677, 139513, 164879, 171457, 1382447, 1633801, 1813669, 15206917, 17971811, 197689921]

約数ペア:

[(1, 197689921), (11, 17971811), (13, 15206917), (109, 1813669), (121, 1633801), (143, 1382447), (1153, 171457), (1199, 164879), (1417, 139513), (1573, 125677), (12683, 15587), (13189, 14989)]