20121405

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{28541}}^1$

素因数の和:28596

約数の個数: 16

約数和(自身を含む): 32880384

約数和(自身を除く): 12758979

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 28541, 85623, 142705, 428115, 1341427, 4024281, 6707135, 20121405]

約数ペア:

[(1, 20121405), (3, 6707135), (5, 4024281), (15, 1341427), (47, 428115), (141, 142705), (235, 85623), (705, 28541)]