21684362

素因数分解:

$2^1\times 7^2\times {\mathrm{409}}^1\times {\mathrm{541}}^1$

素因数の和:966

約数の個数: 24

約数和(自身を含む): 37999620

約数和(自身を除く): 16315258

約数列:

[1, 2, 7, 14, 49, 98, 409, 541, 818, 1082, 2863, 3787, 5726, 7574, 20041, 26509, 40082, 53018, 221269, 442538, 1548883, 3097766, 10842181, 21684362]

約数ペア:

[(1, 21684362), (2, 10842181), (7, 3097766), (14, 1548883), (49, 442538), (98, 221269), (409, 53018), (541, 40082), (818, 26509), (1082, 20041), (2863, 7574), (3787, 5726)]