21033868

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{2357}}^1$

素因数の和:2481

約数の個数: 24

約数和(自身を含む): 38822112

約数和(自身を除く): 17788244

約数列:

[1, 2, 4, 23, 46, 92, 97, 194, 388, 2231, 2357, 4462, 4714, 8924, 9428, 54211, 108422, 216844, 228629, 457258, 914516, 5258467, 10516934, 21033868]

約数ペア:

[(1, 21033868), (2, 10516934), (4, 5258467), (23, 914516), (46, 457258), (92, 228629), (97, 216844), (194, 108422), (388, 54211), (2231, 9428), (2357, 8924), (4462, 4714)]