3919881

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2557}}^1$

素因数の和:2640

約数の個数: 16

約数和(自身を含む): 6057344

約数和(自身を除く): 2137463

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 2557, 7671, 17899, 53697, 186661, 559983, 1306627, 3919881]

約数ペア:

[(1, 3919881), (3, 1306627), (7, 559983), (21, 186661), (73, 53697), (219, 17899), (511, 7671), (1533, 2557)]