19970159

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{107}}^1$

素因数の和:203

約数の個数: 24

約数和(自身を含む): 23701248

約数和(自身を除く): 3731089

約数列:

[1, 11, 19, 47, 107, 209, 361, 517, 893, 1177, 2033, 3971, 5029, 9823, 16967, 22363, 38627, 55319, 95551, 186637, 424897, 1051061, 1815469, 19970159]

約数ペア:

[(1, 19970159), (11, 1815469), (19, 1051061), (47, 424897), (107, 186637), (209, 95551), (361, 55319), (517, 38627), (893, 22363), (1177, 16967), (2033, 9823), (3971, 5029)]