19629351

素因数分解:

$3^3\times 7^2\times {\mathrm{37}}^1\times {\mathrm{401}}^1$

素因数の和:461

約数の個数: 48

約数和(自身を含む): 34829280

約数和(自身を除く): 15199929

約数列:

[1, 3, 7, 9, 21, 27, 37, 49, 63, 111, 147, 189, 259, 333, 401, 441, 777, 999, 1203, 1323, 1813, 2331, 2807, 3609, 5439, 6993, 8421, 10827, 14837, 16317, 19649, 25263, 44511, 48951, 58947, 75789, 103859, 133533, 176841, 311577, 400599, 530523, 727013, 934731, 2181039, 2804193, 6543117, 19629351]

約数ペア:

[(1, 19629351), (3, 6543117), (7, 2804193), (9, 2181039), (21, 934731), (27, 727013), (37, 530523), (49, 400599), (63, 311577), (111, 176841), (147, 133533), (189, 103859), (259, 75789), (333, 58947), (401, 48951), (441, 44511), (777, 25263), (999, 19649), (1203, 16317), (1323, 14837), (1813, 10827), (2331, 8421), (2807, 6993), (3609, 5439)]