21306814

素因数分解:

$2^1\times {\mathrm{17}}^2\times {\mathrm{191}}^1\times {\mathrm{193}}^1$

素因数の和:420

約数の個数: 24

約数和(自身を含む): 34305408

約数和(自身を除く): 12998594

約数列:

[1, 2, 17, 34, 191, 193, 289, 382, 386, 578, 3247, 3281, 6494, 6562, 36863, 55199, 55777, 73726, 110398, 111554, 626671, 1253342, 10653407, 21306814]

約数ペア:

[(1, 21306814), (2, 10653407), (17, 1253342), (34, 626671), (191, 111554), (193, 110398), (289, 73726), (382, 55777), (386, 55199), (578, 36863), (3247, 6562), (3281, 6494)]