21130310

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{29761}}^1$

素因数の和:29839

約数の個数: 16

約数和(自身を含む): 38571552

約数和(自身を除く): 17441242

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 29761, 59522, 148805, 297610, 2113031, 4226062, 10565155, 21130310]

約数ペア:

[(1, 21130310), (2, 10565155), (5, 4226062), (10, 2113031), (71, 297610), (142, 148805), (355, 59522), (710, 29761)]