21176804

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{2281}}^1$

素因数の和:2507

約数の個数: 24

約数和(自身を含む): 40637856

約数和(自身を除く): 19461052

約数列:

[1, 2, 4, 11, 22, 44, 211, 422, 844, 2281, 2321, 4562, 4642, 9124, 9284, 25091, 50182, 100364, 481291, 962582, 1925164, 5294201, 10588402, 21176804]

約数ペア:

[(1, 21176804), (2, 10588402), (4, 5294201), (11, 1925164), (22, 962582), (44, 481291), (211, 100364), (422, 50182), (844, 25091), (2281, 9284), (2321, 9124), (4562, 4642)]