18780285

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{23623}}^1$

素因数の和:23684

約数の個数: 16

約数和(自身を含む): 30616704

約数和(自身を除く): 11836419

約数列:

[1, 3, 5, 15, 53, 159, 265, 795, 23623, 70869, 118115, 354345, 1252019, 3756057, 6260095, 18780285]

約数ペア:

[(1, 18780285), (3, 6260095), (5, 3756057), (15, 1252019), (53, 354345), (159, 118115), (265, 70869), (795, 23623)]