28420707

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{293}}^1$

素因数の和:483

約数の個数: 32

約数和(自身を含む): 45158400

約数和(自身を除く): 16737693

約数列:

[1, 3, 7, 21, 31, 93, 149, 217, 293, 447, 651, 879, 1043, 2051, 3129, 4619, 6153, 9083, 13857, 27249, 32333, 43657, 63581, 96999, 130971, 190743, 305599, 916797, 1353367, 4060101, 9473569, 28420707]

約数ペア:

[(1, 28420707), (3, 9473569), (7, 4060101), (21, 1353367), (31, 916797), (93, 305599), (149, 190743), (217, 130971), (293, 96999), (447, 63581), (651, 43657), (879, 32333), (1043, 27249), (2051, 13857), (3129, 9083), (4619, 6153)]