21294490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{4987}}^1$

素因数の和:5062

約数の個数: 32

約数和(自身を含む): 44532864

約数和(自身を除く): 23238374

約数列:

[1, 2, 5, 7, 10, 14, 35, 61, 70, 122, 305, 427, 610, 854, 2135, 4270, 4987, 9974, 24935, 34909, 49870, 69818, 174545, 304207, 349090, 608414, 1521035, 2129449, 3042070, 4258898, 10647245, 21294490]

約数ペア:

[(1, 21294490), (2, 10647245), (5, 4258898), (7, 3042070), (10, 2129449), (14, 1521035), (35, 608414), (61, 349090), (70, 304207), (122, 174545), (305, 69818), (427, 49870), (610, 34909), (854, 24935), (2135, 9974), (4270, 4987)]