20689218

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{104491}}^1$

素因数の和:104510

約数の個数: 24

約数和(自身を含む): 48902256

約数和(自身を除く): 28213038

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198, 104491, 208982, 313473, 626946, 940419, 1149401, 1880838, 2298802, 3448203, 6896406, 10344609, 20689218]

約数ペア:

[(1, 20689218), (2, 10344609), (3, 6896406), (6, 3448203), (9, 2298802), (11, 1880838), (18, 1149401), (22, 940419), (33, 626946), (66, 313473), (99, 208982), (198, 104491)]