28656771

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{997}}^1$

素因数の和:1091

約数の個数: 32

約数和(自身を含む): 45604608

約数和(自身を除く): 16947837

約数列:

[1, 3, 11, 13, 33, 39, 67, 143, 201, 429, 737, 871, 997, 2211, 2613, 2991, 9581, 10967, 12961, 28743, 32901, 38883, 66799, 142571, 200397, 427713, 734789, 868387, 2204367, 2605161, 9552257, 28656771]

約数ペア:

[(1, 28656771), (3, 9552257), (11, 2605161), (13, 2204367), (33, 868387), (39, 734789), (67, 427713), (143, 200397), (201, 142571), (429, 66799), (737, 38883), (871, 32901), (997, 28743), (2211, 12961), (2613, 10967), (2991, 9581)]