18921819

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{12343}}^1$

素因数の和:12426

約数の個数: 16

約数和(自身を含む): 29230592

約数和(自身を除く): 10308773

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 12343, 37029, 86401, 259203, 901039, 2703117, 6307273, 18921819]

約数ペア:

[(1, 18921819), (3, 6307273), (7, 2703117), (21, 901039), (73, 259203), (219, 86401), (511, 37029), (1533, 12343)]