21021554

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{4513}}^1$

素因数の和:4669

約数の個数: 16

約数和(自身を含む): 33638328

約数和(自身を除く): 12616774

約数列:

[1, 2, 17, 34, 137, 274, 2329, 4513, 4658, 9026, 76721, 153442, 618281, 1236562, 10510777, 21021554]

約数ペア:

[(1, 21021554), (2, 10510777), (17, 1236562), (34, 618281), (137, 153442), (274, 76721), (2329, 9026), (4513, 4658)]