18638356

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{97}}^1\times {\mathrm{397}}^1$

素因数の和:520

約数の個数: 36

約数和(自身を含む): 36312724

約数和(自身を除く): 17674368

約数列:

[1, 2, 4, 11, 22, 44, 97, 121, 194, 242, 388, 397, 484, 794, 1067, 1588, 2134, 4268, 4367, 8734, 11737, 17468, 23474, 38509, 46948, 48037, 77018, 96074, 154036, 192148, 423599, 847198, 1694396, 4659589, 9319178, 18638356]

約数ペア:

[(1, 18638356), (2, 9319178), (4, 4659589), (11, 1694396), (22, 847198), (44, 423599), (97, 192148), (121, 154036), (194, 96074), (242, 77018), (388, 48037), (397, 46948), (484, 38509), (794, 23474), (1067, 17468), (1588, 11737), (2134, 8734), (4268, 4367)]