21001070

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{91309}}^1$

素因数の和:91339

約数の個数: 16

約数和(自身を含む): 39445920

約数和(自身を除く): 18444850

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 91309, 182618, 456545, 913090, 2100107, 4200214, 10500535, 21001070]

約数ペア:

[(1, 21001070), (2, 10500535), (5, 4200214), (10, 2100107), (23, 913090), (46, 456545), (115, 182618), (230, 91309)]