51231908

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1451}}^1$

素因数の和:1572

約数の個数: 48

約数和(自身を含む): 111560064

約数和(自身を除く): 60328156

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 97, 182, 194, 364, 388, 679, 1261, 1358, 1451, 2522, 2716, 2902, 5044, 5804, 8827, 10157, 17654, 18863, 20314, 35308, 37726, 40628, 75452, 132041, 140747, 264082, 281494, 528164, 562988, 985229, 1829711, 1970458, 3659422, 3940916, 7318844, 12807977, 25615954, 51231908]

約数ペア:

[(1, 51231908), (2, 25615954), (4, 12807977), (7, 7318844), (13, 3940916), (14, 3659422), (26, 1970458), (28, 1829711), (52, 985229), (91, 562988), (97, 528164), (182, 281494), (194, 264082), (364, 140747), (388, 132041), (679, 75452), (1261, 40628), (1358, 37726), (1451, 35308), (2522, 20314), (2716, 18863), (2902, 17654), (5044, 10157), (5804, 8827)]