19765564

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{4177}}^1$

素因数の和:4214

約数の個数: 36

約数和(自身を含む): 42816144

約数和(自身を除く): 23050580

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 169, 182, 338, 364, 676, 1183, 2366, 4177, 4732, 8354, 16708, 29239, 54301, 58478, 108602, 116956, 217204, 380107, 705913, 760214, 1411826, 1520428, 2823652, 4941391, 9882782, 19765564]

約数ペア:

[(1, 19765564), (2, 9882782), (4, 4941391), (7, 2823652), (13, 1520428), (14, 1411826), (26, 760214), (28, 705913), (52, 380107), (91, 217204), (169, 116956), (182, 108602), (338, 58478), (364, 54301), (676, 29239), (1183, 16708), (2366, 8354), (4177, 4732)]