20663504

素因数分解:

$2^4\times {\mathrm{269}}^1\times {\mathrm{4801}}^1$

素因数の和:5078

約数の個数: 20

約数和(自身を含む): 40192740

約数和(自身を除く): 19529236

約数列:

[1, 2, 4, 8, 16, 269, 538, 1076, 2152, 4304, 4801, 9602, 19204, 38408, 76816, 1291469, 2582938, 5165876, 10331752, 20663504]

約数ペア:

[(1, 20663504), (2, 10331752), (4, 5165876), (8, 2582938), (16, 1291469), (269, 76816), (538, 38408), (1076, 19204), (2152, 9602), (4304, 4801)]