20021577

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{953}}^1$

素因数の和:1152

約数の個数: 16

約数和(自身を含む): 27475200

約数和(自身を除く): 7453623

約数列:

[1, 3, 47, 141, 149, 447, 953, 2859, 7003, 21009, 44791, 134373, 141997, 425991, 6673859, 20021577]

約数ペア:

[(1, 20021577), (3, 6673859), (47, 425991), (141, 141997), (149, 134373), (447, 44791), (953, 21009), (2859, 7003)]