19399688

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^2\times {\mathrm{409}}^1$

素因数の和:451

約数の個数: 72

約数和(自身を含む): 46623150

約数和(自身を除く): 27223462

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 49, 56, 77, 88, 98, 121, 154, 196, 242, 308, 392, 409, 484, 539, 616, 818, 847, 968, 1078, 1636, 1694, 2156, 2863, 3272, 3388, 4312, 4499, 5726, 5929, 6776, 8998, 11452, 11858, 17996, 20041, 22904, 23716, 31493, 35992, 40082, 47432, 49489, 62986, 80164, 98978, 125972, 160328, 197956, 220451, 251944, 346423, 395912, 440902, 692846, 881804, 1385692, 1763608, 2424961, 2771384, 4849922, 9699844, 19399688]

約数ペア:

[(1, 19399688), (2, 9699844), (4, 4849922), (7, 2771384), (8, 2424961), (11, 1763608), (14, 1385692), (22, 881804), (28, 692846), (44, 440902), (49, 395912), (56, 346423), (77, 251944), (88, 220451), (98, 197956), (121, 160328), (154, 125972), (196, 98978), (242, 80164), (308, 62986), (392, 49489), (409, 47432), (484, 40082), (539, 35992), (616, 31493), (818, 23716), (847, 22904), (968, 20041), (1078, 17996), (1636, 11858), (1694, 11452), (2156, 8998), (2863, 6776), (3272, 5929), (3388, 5726), (4312, 4499)]