21416178

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{509909}}^1$

素因数の和:509921

約数の個数: 16

約数和(自身を含む): 48951360

約数和(自身を除く): 27535182

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 509909, 1019818, 1529727, 3059454, 3569363, 7138726, 10708089, 21416178]

約数ペア:

[(1, 21416178), (2, 10708089), (3, 7138726), (6, 3569363), (7, 3059454), (14, 1529727), (21, 1019818), (42, 509909)]