19902308

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{541}}^2$

素因数の和:1103

約数の個数: 18

約数和(自身を含む): 36946098

約数和(自身を除く): 17043790

約数列:

[1, 2, 4, 17, 34, 68, 541, 1082, 2164, 9197, 18394, 36788, 292681, 585362, 1170724, 4975577, 9951154, 19902308]

約数ペア:

[(1, 19902308), (2, 9951154), (4, 4975577), (17, 1170724), (34, 585362), (68, 292681), (541, 36788), (1082, 18394), (2164, 9197)]