19764052

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:221

約数の個数: 72

約数和(自身を含む): 44815680

約数和(自身を除く): 25051628

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 89, 98, 103, 154, 178, 196, 206, 308, 356, 412, 539, 623, 721, 979, 1078, 1133, 1246, 1442, 1958, 2156, 2266, 2492, 2884, 3916, 4361, 4532, 5047, 6853, 7931, 8722, 9167, 10094, 13706, 15862, 17444, 18334, 20188, 27412, 31724, 36668, 47971, 55517, 64169, 95942, 100837, 111034, 128338, 191884, 201674, 222068, 256676, 403348, 449183, 705859, 898366, 1411718, 1796732, 2823436, 4941013, 9882026, 19764052]

約数ペア:

[(1, 19764052), (2, 9882026), (4, 4941013), (7, 2823436), (11, 1796732), (14, 1411718), (22, 898366), (28, 705859), (44, 449183), (49, 403348), (77, 256676), (89, 222068), (98, 201674), (103, 191884), (154, 128338), (178, 111034), (196, 100837), (206, 95942), (308, 64169), (356, 55517), (412, 47971), (539, 36668), (623, 31724), (721, 27412), (979, 20188), (1078, 18334), (1133, 17444), (1246, 15862), (1442, 13706), (1958, 10094), (2156, 9167), (2266, 8722), (2492, 7931), (2884, 6853), (3916, 5047), (4361, 4532)]