21258496

素因数分解:

$2^8\times 7^1\times {\mathrm{11863}}^1$

素因数の和:11886

約数の個数: 36

約数和(自身を含む): 48500032

約数和(自身を除く): 27241536

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 896, 1792, 11863, 23726, 47452, 83041, 94904, 166082, 189808, 332164, 379616, 664328, 759232, 1328656, 1518464, 2657312, 3036928, 5314624, 10629248, 21258496]

約数ペア:

[(1, 21258496), (2, 10629248), (4, 5314624), (7, 3036928), (8, 2657312), (14, 1518464), (16, 1328656), (28, 759232), (32, 664328), (56, 379616), (64, 332164), (112, 189808), (128, 166082), (224, 94904), (256, 83041), (448, 47452), (896, 23726), (1792, 11863)]