21850317

素因数分解:

$3^7\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 33429760

約数和(自身を除く): 11579443

約数列:

[1, 3, 9, 27, 81, 97, 103, 243, 291, 309, 729, 873, 927, 2187, 2619, 2781, 7857, 8343, 9991, 23571, 25029, 29973, 70713, 75087, 89919, 212139, 225261, 269757, 809271, 2427813, 7283439, 21850317]

約数ペア:

[(1, 21850317), (3, 7283439), (9, 2427813), (27, 809271), (81, 269757), (97, 225261), (103, 212139), (243, 89919), (291, 75087), (309, 70713), (729, 29973), (873, 25029), (927, 23571), (2187, 9991), (2619, 8343), (2781, 7857)]