21411806

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{251}}^1$

素因数の和:476

約数の個数: 32

約数和(自身を含む): 36959328

約数和(自身を除く): 15547522

約数列:

[1, 2, 13, 17, 26, 34, 193, 221, 251, 386, 442, 502, 2509, 3263, 3281, 4267, 5018, 6526, 6562, 8534, 42653, 48443, 55471, 85306, 96886, 110942, 629759, 823531, 1259518, 1647062, 10705903, 21411806]

約数ペア:

[(1, 21411806), (2, 10705903), (13, 1647062), (17, 1259518), (26, 823531), (34, 629759), (193, 110942), (221, 96886), (251, 85306), (386, 55471), (442, 48443), (502, 42653), (2509, 8534), (3263, 6562), (3281, 6526), (4267, 5018)]