28206213

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{11287}}^1$

素因数の和:11321

約数の個数: 24

約数和(自身を含む): 46325952

約数和(自身を除く): 18119739

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 11287, 33861, 79009, 191879, 237027, 553063, 575637, 1343153, 1659189, 4029459, 9402071, 28206213]

約数ペア:

[(1, 28206213), (3, 9402071), (7, 4029459), (17, 1659189), (21, 1343153), (49, 575637), (51, 553063), (119, 237027), (147, 191879), (357, 79009), (833, 33861), (2499, 11287)]