21031365

素因数分解:

$3^1\times 5^1\times {\mathrm{317}}^1\times {\mathrm{4423}}^1$

素因数の和:4748

約数の個数: 16

約数和(自身を含む): 33763968

約数和(自身を除く): 12732603

約数列:

[1, 3, 5, 15, 317, 951, 1585, 4423, 4755, 13269, 22115, 66345, 1402091, 4206273, 7010455, 21031365]

約数ペア:

[(1, 21031365), (3, 7010455), (5, 4206273), (15, 1402091), (317, 66345), (951, 22115), (1585, 13269), (4423, 4755)]