21037874

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4327}}^1$

素因数の和:4370

約数の個数: 32

約数和(自身を含む): 39263616

約数和(自身を除く): 18225742

約数列:

[1, 2, 11, 13, 17, 22, 26, 34, 143, 187, 221, 286, 374, 442, 2431, 4327, 4862, 8654, 47597, 56251, 73559, 95194, 112502, 147118, 618761, 809149, 956267, 1237522, 1618298, 1912534, 10518937, 21037874]

約数ペア:

[(1, 21037874), (2, 10518937), (11, 1912534), (13, 1618298), (17, 1237522), (22, 956267), (26, 809149), (34, 618761), (143, 147118), (187, 112502), (221, 95194), (286, 73559), (374, 56251), (442, 47597), (2431, 8654), (4327, 4862)]