20825476

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{653}}^1$

素因数の和:748

約数の個数: 48

約数和(自身を含む): 44827776

約数和(自身を除く): 24002300

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 67, 68, 119, 134, 238, 268, 469, 476, 653, 938, 1139, 1306, 1876, 2278, 2612, 4556, 4571, 7973, 9142, 11101, 15946, 18284, 22202, 31892, 43751, 44404, 77707, 87502, 155414, 175004, 306257, 310828, 612514, 743767, 1225028, 1487534, 2975068, 5206369, 10412738, 20825476]

約数ペア:

[(1, 20825476), (2, 10412738), (4, 5206369), (7, 2975068), (14, 1487534), (17, 1225028), (28, 743767), (34, 612514), (67, 310828), (68, 306257), (119, 175004), (134, 155414), (238, 87502), (268, 77707), (469, 44404), (476, 43751), (653, 31892), (938, 22202), (1139, 18284), (1306, 15946), (1876, 11101), (2278, 9142), (2612, 7973), (4556, 4571)]