16520990

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{23269}}^1$

素因数の和:23347

約数の個数: 16

約数和(自身を含む): 30157920

約数和(自身を除く): 13636930

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 23269, 46538, 116345, 232690, 1652099, 3304198, 8260495, 16520990]

約数ペア:

[(1, 16520990), (2, 8260495), (5, 3304198), (10, 1652099), (71, 232690), (142, 116345), (355, 46538), (710, 23269)]