20021008

素因数分解:

$2^4\times 7^2\times {\mathrm{25537}}^1$

素因数の和:25559

約数の個数: 30

約数和(自身を含む): 45125646

約数和(自身を除く): 25104638

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784, 25537, 51074, 102148, 178759, 204296, 357518, 408592, 715036, 1251313, 1430072, 2502626, 2860144, 5005252, 10010504, 20021008]

約数ペア:

[(1, 20021008), (2, 10010504), (4, 5005252), (7, 2860144), (8, 2502626), (14, 1430072), (16, 1251313), (28, 715036), (49, 408592), (56, 357518), (98, 204296), (112, 178759), (196, 102148), (392, 51074), (784, 25537)]