21304048

素因数分解:

$2^4\times {\mathrm{137}}^1\times {\mathrm{9719}}^1$

素因数の和:9864

約数の個数: 20

約数和(自身を含む): 41582160

約数和(自身を除く): 20278112

約数列:

[1, 2, 4, 8, 16, 137, 274, 548, 1096, 2192, 9719, 19438, 38876, 77752, 155504, 1331503, 2663006, 5326012, 10652024, 21304048]

約数ペア:

[(1, 21304048), (2, 10652024), (4, 5326012), (8, 2663006), (16, 1331503), (137, 155504), (274, 77752), (548, 38876), (1096, 19438), (2192, 9719)]