19965946

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9973}}^1$

素因数の和:10006

約数の個数: 32

約数和(自身を含む): 40215168

約数和(自身を除く): 20249222

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 77, 91, 143, 154, 182, 286, 1001, 2002, 9973, 19946, 69811, 109703, 129649, 139622, 219406, 259298, 767921, 907543, 1426139, 1535842, 1815086, 2852278, 9982973, 19965946]

約数ペア:

[(1, 19965946), (2, 9982973), (7, 2852278), (11, 1815086), (13, 1535842), (14, 1426139), (22, 907543), (26, 767921), (77, 259298), (91, 219406), (143, 139622), (154, 129649), (182, 109703), (286, 69811), (1001, 19946), (2002, 9973)]