20928852

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1567}}^1$

素因数の和:1637

約数の個数: 72

約数和(自身を含む): 61641216

約数和(自身を除く): 40712364

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 53, 63, 84, 106, 126, 159, 212, 252, 318, 371, 477, 636, 742, 954, 1113, 1484, 1567, 1908, 2226, 3134, 3339, 4452, 4701, 6268, 6678, 9402, 10969, 13356, 14103, 18804, 21938, 28206, 32907, 43876, 56412, 65814, 83051, 98721, 131628, 166102, 197442, 249153, 332204, 394884, 498306, 581357, 747459, 996612, 1162714, 1494918, 1744071, 2325428, 2989836, 3488142, 5232213, 6976284, 10464426, 20928852]

約数ペア:

[(1, 20928852), (2, 10464426), (3, 6976284), (4, 5232213), (6, 3488142), (7, 2989836), (9, 2325428), (12, 1744071), (14, 1494918), (18, 1162714), (21, 996612), (28, 747459), (36, 581357), (42, 498306), (53, 394884), (63, 332204), (84, 249153), (106, 197442), (126, 166102), (159, 131628), (212, 98721), (252, 83051), (318, 65814), (371, 56412), (477, 43876), (636, 32907), (742, 28206), (954, 21938), (1113, 18804), (1484, 14103), (1567, 13356), (1908, 10969), (2226, 9402), (3134, 6678), (3339, 6268), (4452, 4701)]