21602180

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{5119}}^1$

素因数の和:5339

約数の個数: 24

約数和(自身を含む): 45588480

約数和(自身を除く): 23986300

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4220, 5119, 10238, 20476, 25595, 51190, 102380, 1080109, 2160218, 4320436, 5400545, 10801090, 21602180]

約数ペア:

[(1, 21602180), (2, 10801090), (4, 5400545), (5, 4320436), (10, 2160218), (20, 1080109), (211, 102380), (422, 51190), (844, 25595), (1055, 20476), (2110, 10238), (4220, 5119)]