21045992

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{769}}^1$

素因数の和:1097

約数の個数: 32

約数和(自身を含む): 43243200

約数和(自身を除く): 22197208

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 311, 622, 769, 1244, 1538, 2488, 3076, 3421, 6152, 6842, 8459, 13684, 16918, 27368, 33836, 67672, 239159, 478318, 956636, 1913272, 2630749, 5261498, 10522996, 21045992]

約数ペア:

[(1, 21045992), (2, 10522996), (4, 5261498), (8, 2630749), (11, 1913272), (22, 956636), (44, 478318), (88, 239159), (311, 67672), (622, 33836), (769, 27368), (1244, 16918), (1538, 13684), (2488, 8459), (3076, 6842), (3421, 6152)]