21272816

素因数分解:

$2^4\times {\mathrm{191}}^1\times {\mathrm{6961}}^1$

素因数の和:7160

約数の個数: 20

約数和(自身を含む): 41437824

約数和(自身を除く): 20165008

約数列:

[1, 2, 4, 8, 16, 191, 382, 764, 1528, 3056, 6961, 13922, 27844, 55688, 111376, 1329551, 2659102, 5318204, 10636408, 21272816]

約数ペア:

[(1, 21272816), (2, 10636408), (4, 5318204), (8, 2659102), (16, 1329551), (191, 111376), (382, 55688), (764, 27844), (1528, 13922), (3056, 6961)]