18900574

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:313

約数の個数: 48

約数和(自身を含む): 36566640

約数和(自身を除く): 17666066

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 89, 98, 154, 178, 197, 394, 539, 623, 979, 1078, 1246, 1379, 1958, 2167, 2758, 4334, 4361, 6853, 8722, 9653, 13706, 15169, 17533, 19306, 30338, 35066, 47971, 95942, 106183, 122731, 192863, 212366, 245462, 385726, 859117, 1350041, 1718234, 2700082, 9450287, 18900574]

約数ペア:

[(1, 18900574), (2, 9450287), (7, 2700082), (11, 1718234), (14, 1350041), (22, 859117), (49, 385726), (77, 245462), (89, 212366), (98, 192863), (154, 122731), (178, 106183), (197, 95942), (394, 47971), (539, 35066), (623, 30338), (979, 19306), (1078, 17533), (1246, 15169), (1379, 13706), (1958, 9653), (2167, 8722), (2758, 6853), (4334, 4361)]