21235984

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1567}}^1$

素因数の和:1604

約数の個数: 60

約数和(自身を含む): 51718912

約数和(自身を除く): 30482928

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 121, 154, 176, 242, 308, 484, 616, 847, 968, 1232, 1567, 1694, 1936, 3134, 3388, 6268, 6776, 10969, 12536, 13552, 17237, 21938, 25072, 34474, 43876, 68948, 87752, 120659, 137896, 175504, 189607, 241318, 275792, 379214, 482636, 758428, 965272, 1327249, 1516856, 1930544, 2654498, 3033712, 5308996, 10617992, 21235984]

約数ペア:

[(1, 21235984), (2, 10617992), (4, 5308996), (7, 3033712), (8, 2654498), (11, 1930544), (14, 1516856), (16, 1327249), (22, 965272), (28, 758428), (44, 482636), (56, 379214), (77, 275792), (88, 241318), (112, 189607), (121, 175504), (154, 137896), (176, 120659), (242, 87752), (308, 68948), (484, 43876), (616, 34474), (847, 25072), (968, 21938), (1232, 17237), (1567, 13552), (1694, 12536), (1936, 10969), (3134, 6776), (3388, 6268)]