20571664

素因数分解:

$2^4\times {\mathrm{461}}^1\times {\mathrm{2789}}^1$

素因数の和:3258

約数の個数: 20

約数和(自身を含む): 39958380

約数和(自身を除く): 19386716

約数列:

[1, 2, 4, 8, 16, 461, 922, 1844, 2789, 3688, 5578, 7376, 11156, 22312, 44624, 1285729, 2571458, 5142916, 10285832, 20571664]

約数ペア:

[(1, 20571664), (2, 10285832), (4, 5142916), (8, 2571458), (16, 1285729), (461, 44624), (922, 22312), (1844, 11156), (2789, 7376), (3688, 5578)]