19615312

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{557}}^1$

素因数の和:667

約数の個数: 40

約数和(自身を含む): 39854592

約数和(自身を除く): 20239280

約数列:

[1, 2, 4, 8, 16, 31, 62, 71, 124, 142, 248, 284, 496, 557, 568, 1114, 1136, 2201, 2228, 4402, 4456, 8804, 8912, 17267, 17608, 34534, 35216, 39547, 69068, 79094, 138136, 158188, 276272, 316376, 632752, 1225957, 2451914, 4903828, 9807656, 19615312]

約数ペア:

[(1, 19615312), (2, 9807656), (4, 4903828), (8, 2451914), (16, 1225957), (31, 632752), (62, 316376), (71, 276272), (124, 158188), (142, 138136), (248, 79094), (284, 69068), (496, 39547), (557, 35216), (568, 34534), (1114, 17608), (1136, 17267), (2201, 8912), (2228, 8804), (4402, 4456)]