20872722

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{3769}}^1$

素因数の和:3858

約数の個数: 32

約数和(自身を含む): 45601920

約数和(自身を除く): 24729198

約数列:

[1, 2, 3, 6, 13, 26, 39, 71, 78, 142, 213, 426, 923, 1846, 2769, 3769, 5538, 7538, 11307, 22614, 48997, 97994, 146991, 267599, 293982, 535198, 802797, 1605594, 3478787, 6957574, 10436361, 20872722]

約数ペア:

[(1, 20872722), (2, 10436361), (3, 6957574), (6, 3478787), (13, 1605594), (26, 802797), (39, 535198), (71, 293982), (78, 267599), (142, 146991), (213, 97994), (426, 48997), (923, 22614), (1846, 11307), (2769, 7538), (3769, 5538)]