21342064

素因数分解:

$2^4\times {\mathrm{311}}^1\times {\mathrm{4289}}^1$

素因数の和:4608

約数の個数: 20

約数和(自身を含む): 41492880

約数和(自身を除く): 20150816

約数列:

[1, 2, 4, 8, 16, 311, 622, 1244, 2488, 4289, 4976, 8578, 17156, 34312, 68624, 1333879, 2667758, 5335516, 10671032, 21342064]

約数ペア:

[(1, 21342064), (2, 10671032), (4, 5335516), (8, 2667758), (16, 1333879), (311, 68624), (622, 34312), (1244, 17156), (2488, 8578), (4289, 4976)]