21131504

素因数分解:

$2^4\times {\mathrm{827}}^1\times {\mathrm{1597}}^1$

素因数の和:2432

約数の個数: 20

約数和(自身を含む): 41017464

約数和(自身を除く): 19885960

約数列:

[1, 2, 4, 8, 16, 827, 1597, 1654, 3194, 3308, 6388, 6616, 12776, 13232, 25552, 1320719, 2641438, 5282876, 10565752, 21131504]

約数ペア:

[(1, 21131504), (2, 10565752), (4, 5282876), (8, 2641438), (16, 1320719), (827, 25552), (1597, 13232), (1654, 12776), (3194, 6616), (3308, 6388)]