20375836

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{4721}}^1$

素因数の和:4821

約数の個数: 24

約数和(自身を含む): 38871504

約数和(自身を除く): 18495668

約数列:

[1, 2, 4, 13, 26, 52, 83, 166, 332, 1079, 2158, 4316, 4721, 9442, 18884, 61373, 122746, 245492, 391843, 783686, 1567372, 5093959, 10187918, 20375836]

約数ペア:

[(1, 20375836), (2, 10187918), (4, 5093959), (13, 1567372), (26, 783686), (52, 391843), (83, 245492), (166, 122746), (332, 61373), (1079, 18884), (2158, 9442), (4316, 4721)]