1821169427

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{307163}}^1$

素因数の和:307199

約数の個数: 18

約数和(自身を含む): 2328610284

約数和(自身を除く): 507440857

約数列:

[1, 7, 11, 49, 77, 121, 539, 847, 5929, 307163, 2150141, 3378793, 15050987, 23651551, 37166723, 165560857, 260167061, 1821169427]

約数ペア:

[(1, 1821169427), (7, 260167061), (11, 165560857), (49, 37166723), (77, 23651551), (121, 15050987), (539, 3378793), (847, 2150141), (5929, 307163)]