21284918

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{421}}^1\times {\mathrm{1487}}^1$

素因数の和:1927

約数の個数: 16

約数和(自身を含む): 33908544

約数和(自身を除く): 12623626

約数列:

[1, 2, 17, 34, 421, 842, 1487, 2974, 7157, 14314, 25279, 50558, 626027, 1252054, 10642459, 21284918]

約数ペア:

[(1, 21284918), (2, 10642459), (17, 1252054), (34, 626027), (421, 50558), (842, 25279), (1487, 14314), (2974, 7157)]