21668812

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{491}}^1$

素因数の和:582

約数の個数: 48

約数和(自身を含む): 44634240

約数和(自身を除く): 22965428

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 59, 68, 118, 187, 236, 374, 491, 649, 748, 982, 1003, 1298, 1964, 2006, 2596, 4012, 5401, 8347, 10802, 11033, 16694, 21604, 22066, 28969, 33388, 44132, 57938, 91817, 115876, 183634, 318659, 367268, 492473, 637318, 984946, 1274636, 1969892, 5417203, 10834406, 21668812]

約数ペア:

[(1, 21668812), (2, 10834406), (4, 5417203), (11, 1969892), (17, 1274636), (22, 984946), (34, 637318), (44, 492473), (59, 367268), (68, 318659), (118, 183634), (187, 115876), (236, 91817), (374, 57938), (491, 44132), (649, 33388), (748, 28969), (982, 22066), (1003, 21604), (1298, 16694), (1964, 11033), (2006, 10802), (2596, 8347), (4012, 5401)]