21134555

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:303

約数の個数: 32

約数和(自身を含む): 29198400

約数和(自身を除く): 8063845

約数列:

[1, 5, 13, 19, 65, 95, 109, 157, 247, 545, 785, 1235, 1417, 2041, 2071, 2983, 7085, 10205, 10355, 14915, 17113, 26923, 38779, 85565, 134615, 193895, 222469, 325147, 1112345, 1625735, 4226911, 21134555]

約数ペア:

[(1, 21134555), (5, 4226911), (13, 1625735), (19, 1112345), (65, 325147), (95, 222469), (109, 193895), (157, 134615), (247, 85565), (545, 38779), (785, 26923), (1235, 17113), (1417, 14915), (2041, 10355), (2071, 10205), (2983, 7085)]