21365084

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{3989}}^1$

素因数の和:4109

約数の個数: 24

約数和(自身を含む): 40666080

約数和(自身を除く): 19300996

約数列:

[1, 2, 4, 13, 26, 52, 103, 206, 412, 1339, 2678, 3989, 5356, 7978, 15956, 51857, 103714, 207428, 410867, 821734, 1643468, 5341271, 10682542, 21365084]

約数ペア:

[(1, 21365084), (2, 10682542), (4, 5341271), (13, 1643468), (26, 821734), (52, 410867), (103, 207428), (206, 103714), (412, 51857), (1339, 15956), (2678, 7978), (3989, 5356)]