20961351

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{3313}}^1$

素因数の和:3375

約数の個数: 24

約数和(自身を含む): 32742320

約数和(自身を除く): 11780969

約数列:

[1, 3, 9, 19, 37, 57, 111, 171, 333, 703, 2109, 3313, 6327, 9939, 29817, 62947, 122581, 188841, 367743, 566523, 1103229, 2329039, 6987117, 20961351]

約数ペア:

[(1, 20961351), (3, 6987117), (9, 2329039), (19, 1103229), (37, 566523), (57, 367743), (111, 188841), (171, 122581), (333, 62947), (703, 29817), (2109, 9939), (3313, 6327)]