19812991

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{2017}}^1$

素因数の和:2094

約数の個数: 16

約数和(自身を含む): 23247360

約数和(自身を除く): 3434369

約数列:

[1, 11, 19, 47, 209, 517, 893, 2017, 9823, 22187, 38323, 94799, 421553, 1042789, 1801181, 19812991]

約数ペア:

[(1, 19812991), (11, 1801181), (19, 1042789), (47, 421553), (209, 94799), (517, 38323), (893, 22187), (2017, 9823)]