20825288

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{2659}}^1$

素因数の和:2765

約数の個数: 32

約数和(自身を含む): 43092000

約数和(自身を除く): 22266712

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 89, 178, 356, 712, 979, 1958, 2659, 3916, 5318, 7832, 10636, 21272, 29249, 58498, 116996, 233992, 236651, 473302, 946604, 1893208, 2603161, 5206322, 10412644, 20825288]

約数ペア:

[(1, 20825288), (2, 10412644), (4, 5206322), (8, 2603161), (11, 1893208), (22, 946604), (44, 473302), (88, 236651), (89, 233992), (178, 116996), (356, 58498), (712, 29249), (979, 21272), (1958, 10636), (2659, 7832), (3916, 5318)]