19951504

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{8971}}^1$

素因数の和:9118

約数の個数: 20

約数和(自身を含む): 38938480

約数和(自身を除く): 18986976

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 8971, 17942, 35884, 71768, 143536, 1246969, 2493938, 4987876, 9975752, 19951504]

約数ペア:

[(1, 19951504), (2, 9975752), (4, 4987876), (8, 2493938), (16, 1246969), (139, 143536), (278, 71768), (556, 35884), (1112, 17942), (2224, 8971)]