20748112

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1531}}^1$

素因数の和:1568

約数の個数: 60

約数和(自身を含む): 50531488

約数和(自身を除く): 29783376

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, 1531, 1694, 1936, 3062, 3388, 6124, 6776, 10717, 12248, 13552, 16841, 21434, 24496, 33682, 42868, 67364, 85736, 117887, 134728, 171472, 185251, 235774, 269456, 370502, 471548, 741004, 943096, 1296757, 1482008, 1886192, 2593514, 2964016, 5187028, 10374056, 20748112]

約数ペア:

[(1, 20748112), (2, 10374056), (4, 5187028), (7, 2964016), (8, 2593514), (11, 1886192), (14, 1482008), (16, 1296757), (22, 943096), (28, 741004), (44, 471548), (56, 370502), (77, 269456), (88, 235774), (112, 185251), (121, 171472), (154, 134728), (176, 117887), (242, 85736), (308, 67364), (484, 42868), (616, 33682), (847, 24496), (968, 21434), (1232, 16841), (1531, 13552), (1694, 12248), (1936, 10717), (3062, 6776), (3388, 6124)]