21806044

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{2671}}^1$

素因数の和:2845

約数の個数: 24

約数和(自身を含む): 41373248

約数和(自身を除く): 19567204

約数列:

[1, 2, 4, 13, 26, 52, 157, 314, 628, 2041, 2671, 4082, 5342, 8164, 10684, 34723, 69446, 138892, 419347, 838694, 1677388, 5451511, 10903022, 21806044]

約数ペア:

[(1, 21806044), (2, 10903022), (4, 5451511), (13, 1677388), (26, 838694), (52, 419347), (157, 138892), (314, 69446), (628, 34723), (2041, 10684), (2671, 8164), (4082, 5342)]