21386343

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1483}}^1$

素因数の和:1539

約数の個数: 32

約数和(自身を含む): 34191360

約数和(自身を除く): 12805017

約数列:

[1, 3, 11, 19, 23, 33, 57, 69, 209, 253, 437, 627, 759, 1311, 1483, 4449, 4807, 14421, 16313, 28177, 34109, 48939, 84531, 102327, 309947, 375199, 648071, 929841, 1125597, 1944213, 7128781, 21386343]

約数ペア:

[(1, 21386343), (3, 7128781), (11, 1944213), (19, 1125597), (23, 929841), (33, 648071), (57, 375199), (69, 309947), (209, 102327), (253, 84531), (437, 48939), (627, 34109), (759, 28177), (1311, 16313), (1483, 14421), (4449, 4807)]