19888659

素因数分解:

$3^4\times 7^2\times {\mathrm{5011}}^1$

素因数の和:5037

約数の個数: 30

約数和(自身を含む): 34567764

約数和(自身を除く): 14679105

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 5011, 15033, 35077, 45099, 105231, 135297, 245539, 315693, 405891, 736617, 947079, 2209851, 2841237, 6629553, 19888659]

約数ペア:

[(1, 19888659), (3, 6629553), (7, 2841237), (9, 2209851), (21, 947079), (27, 736617), (49, 405891), (63, 315693), (81, 245539), (147, 135297), (189, 105231), (441, 45099), (567, 35077), (1323, 15033), (3969, 5011)]