18729452

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{229}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 39567360

約数和(自身を除く): 20837908

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 127, 161, 229, 254, 322, 458, 508, 644, 889, 916, 1603, 1778, 2921, 3206, 3556, 5267, 5842, 6412, 10534, 11684, 20447, 21068, 29083, 36869, 40894, 58166, 73738, 81788, 116332, 147476, 203581, 407162, 668909, 814324, 1337818, 2675636, 4682363, 9364726, 18729452]

約数ペア:

[(1, 18729452), (2, 9364726), (4, 4682363), (7, 2675636), (14, 1337818), (23, 814324), (28, 668909), (46, 407162), (92, 203581), (127, 147476), (161, 116332), (229, 81788), (254, 73738), (322, 58166), (458, 40894), (508, 36869), (644, 29083), (889, 21068), (916, 20447), (1603, 11684), (1778, 10534), (2921, 6412), (3206, 5842), (3556, 5267)]