21390348

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{254647}}^1$

素因数の和:254661

約数の個数: 24

約数和(自身を含む): 57041152

約数和(自身を除く): 35650804

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 254647, 509294, 763941, 1018588, 1527882, 1782529, 3055764, 3565058, 5347587, 7130116, 10695174, 21390348]

約数ペア:

[(1, 21390348), (2, 10695174), (3, 7130116), (4, 5347587), (6, 3565058), (7, 3055764), (12, 1782529), (14, 1527882), (21, 1018588), (28, 763941), (42, 509294), (84, 254647)]