21287770

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{3011}}^1$

素因数の和:3126

約数の個数: 32

約数和(自身を含む): 44240256

約数和(自身を除く): 22952486

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 101, 202, 505, 707, 1010, 1414, 3011, 3535, 6022, 7070, 15055, 21077, 30110, 42154, 105385, 210770, 304111, 608222, 1520555, 2128777, 3041110, 4257554, 10643885, 21287770]

約数ペア:

[(1, 21287770), (2, 10643885), (5, 4257554), (7, 3041110), (10, 2128777), (14, 1520555), (35, 608222), (70, 304111), (101, 210770), (202, 105385), (505, 42154), (707, 30110), (1010, 21077), (1414, 15055), (3011, 7070), (3535, 6022)]