20969901

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{997}}^1$

素因数の和:1066

約数の個数: 32

約数和(自身を含む): 33532800

約数和(自身を除く): 12562899

約数列:

[1, 3, 9, 19, 27, 41, 57, 123, 171, 369, 513, 779, 997, 1107, 2337, 2991, 7011, 8973, 18943, 21033, 26919, 40877, 56829, 122631, 170487, 367893, 511461, 776663, 1103679, 2329989, 6989967, 20969901]

約数ペア:

[(1, 20969901), (3, 6989967), (9, 2329989), (19, 1103679), (27, 776663), (41, 511461), (57, 367893), (123, 170487), (171, 122631), (369, 56829), (513, 40877), (779, 26919), (997, 21033), (1107, 18943), (2337, 8973), (2991, 7011)]