20578212

素因数分解:

$2^2\times 3^6\times {\mathrm{7057}}^1$

素因数の和:7079

約数の個数: 42

約数和(自身を含む): 54000758

約数和(自身を除く): 33422546

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 729, 972, 1458, 2916, 7057, 14114, 21171, 28228, 42342, 63513, 84684, 127026, 190539, 254052, 381078, 571617, 762156, 1143234, 1714851, 2286468, 3429702, 5144553, 6859404, 10289106, 20578212]

約数ペア:

[(1, 20578212), (2, 10289106), (3, 6859404), (4, 5144553), (6, 3429702), (9, 2286468), (12, 1714851), (18, 1143234), (27, 762156), (36, 571617), (54, 381078), (81, 254052), (108, 190539), (162, 127026), (243, 84684), (324, 63513), (486, 42342), (729, 28228), (972, 21171), (1458, 14114), (2916, 7057)]