28965937

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1523}}^1$

素因数の和:1573

約数の個数: 32

約数和(自身を含む): 40965120

約数和(自身を除く): 11999183

約数列:

[1, 7, 11, 13, 19, 77, 91, 133, 143, 209, 247, 1001, 1463, 1523, 1729, 2717, 10661, 16753, 19019, 19799, 28937, 117271, 138593, 202559, 217789, 318307, 376181, 1524523, 2228149, 2633267, 4137991, 28965937]

約数ペア:

[(1, 28965937), (7, 4137991), (11, 2633267), (13, 2228149), (19, 1524523), (77, 376181), (91, 318307), (133, 217789), (143, 202559), (209, 138593), (247, 117271), (1001, 28937), (1463, 19799), (1523, 19019), (1729, 16753), (2717, 10661)]