20131811

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{4091}}^1$

素因数の和:4154

約数の個数: 16

約数和(自身を含む): 24879360

約数和(自身を除く): 4747549

約数列:

[1, 7, 19, 37, 133, 259, 703, 4091, 4921, 28637, 77729, 151367, 544103, 1059569, 2875973, 20131811]

約数ペア:

[(1, 20131811), (7, 2875973), (19, 1059569), (37, 544103), (133, 151367), (259, 77729), (703, 28637), (4091, 4921)]