21940578

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{859}}^1$

素因数の和:924

約数の個数: 64

約数和(自身を含む): 54489600

約数和(自身を除く): 32549022

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 43, 54, 66, 86, 99, 129, 198, 258, 297, 387, 473, 594, 774, 859, 946, 1161, 1419, 1718, 2322, 2577, 2838, 4257, 5154, 7731, 8514, 9449, 12771, 15462, 18898, 23193, 25542, 28347, 36937, 46386, 56694, 73874, 85041, 110811, 170082, 221622, 255123, 332433, 406307, 510246, 664866, 812614, 997299, 1218921, 1994598, 2437842, 3656763, 7313526, 10970289, 21940578]

約数ペア:

[(1, 21940578), (2, 10970289), (3, 7313526), (6, 3656763), (9, 2437842), (11, 1994598), (18, 1218921), (22, 997299), (27, 812614), (33, 664866), (43, 510246), (54, 406307), (66, 332433), (86, 255123), (99, 221622), (129, 170082), (198, 110811), (258, 85041), (297, 73874), (387, 56694), (473, 46386), (594, 36937), (774, 28347), (859, 25542), (946, 23193), (1161, 18898), (1419, 15462), (1718, 12771), (2322, 9449), (2577, 8514), (2838, 7731), (4257, 5154)]