20540492

素因数分解:

$2^2\times 7^1\times {\mathrm{563}}^1\times {\mathrm{1303}}^1$

素因数の和:1877

約数の個数: 24

約数和(自身を含む): 41185536

約数和(自身を除く): 20645044

約数列:

[1, 2, 4, 7, 14, 28, 563, 1126, 1303, 2252, 2606, 3941, 5212, 7882, 9121, 15764, 18242, 36484, 733589, 1467178, 2934356, 5135123, 10270246, 20540492]

約数ペア:

[(1, 20540492), (2, 10270246), (4, 5135123), (7, 2934356), (14, 1467178), (28, 733589), (563, 36484), (1126, 18242), (1303, 15764), (2252, 9121), (2606, 7882), (3941, 5212)]