21727377

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{20287}}^1$

素因数の和:20317

約数の個数: 24

約数和(自身を含む): 37979136

約数和(自身を除く): 16251759

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 20287, 60861, 142009, 182583, 344879, 426027, 1034637, 1278081, 2414153, 3103911, 7242459, 21727377]

約数ペア:

[(1, 21727377), (3, 7242459), (7, 3103911), (9, 2414153), (17, 1278081), (21, 1034637), (51, 426027), (63, 344879), (119, 182583), (153, 142009), (357, 60861), (1071, 20287)]