21516056

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{353}}^1\times {\mathrm{401}}^1$

素因数の和:779

約数の個数: 32

約数和(自身を含む): 42692400

約数和(自身を除く): 21176344

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 353, 401, 706, 802, 1412, 1604, 2824, 3208, 6707, 7619, 13414, 15238, 26828, 30476, 53656, 60952, 141553, 283106, 566212, 1132424, 2689507, 5379014, 10758028, 21516056]

約数ペア:

[(1, 21516056), (2, 10758028), (4, 5379014), (8, 2689507), (19, 1132424), (38, 566212), (76, 283106), (152, 141553), (353, 60952), (401, 53656), (706, 30476), (802, 26828), (1412, 15238), (1604, 13414), (2824, 7619), (3208, 6707)]