19431993

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{281}}^1$

素因数の和:417

約数の個数: 32

約数和(自身を含む): 30862080

約数和(自身を除く): 11430087

約数列:

[1, 3, 7, 21, 37, 89, 111, 259, 267, 281, 623, 777, 843, 1869, 1967, 3293, 5901, 9879, 10397, 23051, 25009, 31191, 69153, 72779, 75027, 175063, 218337, 525189, 925333, 2775999, 6477331, 19431993]

約数ペア:

[(1, 19431993), (3, 6477331), (7, 2775999), (21, 925333), (37, 525189), (89, 218337), (111, 175063), (259, 75027), (267, 72779), (281, 69153), (623, 31191), (777, 25009), (843, 23051), (1869, 10397), (1967, 9879), (3293, 5901)]