21132955

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{4691}}^1$

素因数の和:4766

約数の個数: 16

約数和(自身を含む): 27363744

約数和(自身を除く): 6230789

約数列:

[1, 5, 17, 53, 85, 265, 901, 4505, 4691, 23455, 79747, 248623, 398735, 1243115, 4226591, 21132955]

約数ペア:

[(1, 21132955), (5, 4226591), (17, 1243115), (53, 398735), (85, 248623), (265, 79747), (901, 23455), (4505, 4691)]