19939858

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{241}}^1\times {\mathrm{1009}}^1$

素因数の和:1293

約数の個数: 16

約数和(自身を含む): 30796920

約数和(自身を除く): 10857062

約数列:

[1, 2, 41, 82, 241, 482, 1009, 2018, 9881, 19762, 41369, 82738, 243169, 486338, 9969929, 19939858]

約数ペア:

[(1, 19939858), (2, 9969929), (41, 486338), (82, 243169), (241, 82738), (482, 41369), (1009, 19762), (2018, 9881)]