20749896

素因数分解:

$2^3\times 3^2\times {\mathrm{37}}^1\times {\mathrm{7789}}^1$

素因数の和:7838

約数の個数: 48

約数和(自身を含む): 57723900

約数和(自身を除く): 36974004

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 37, 72, 74, 111, 148, 222, 296, 333, 444, 666, 888, 1332, 2664, 7789, 15578, 23367, 31156, 46734, 62312, 70101, 93468, 140202, 186936, 280404, 288193, 560808, 576386, 864579, 1152772, 1729158, 2305544, 2593737, 3458316, 5187474, 6916632, 10374948, 20749896]

約数ペア:

[(1, 20749896), (2, 10374948), (3, 6916632), (4, 5187474), (6, 3458316), (8, 2593737), (9, 2305544), (12, 1729158), (18, 1152772), (24, 864579), (36, 576386), (37, 560808), (72, 288193), (74, 280404), (111, 186936), (148, 140202), (222, 93468), (296, 70101), (333, 62312), (444, 46734), (666, 31156), (888, 23367), (1332, 15578), (2664, 7789)]