21209706

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{168331}}^1$

素因数の和:168346

約数の個数: 24

約数和(自身を含む): 52519584

約数和(自身を除く): 31309878

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 168331, 336662, 504993, 1009986, 1178317, 1514979, 2356634, 3029958, 3534951, 7069902, 10604853, 21209706]

約数ペア:

[(1, 21209706), (2, 10604853), (3, 7069902), (6, 3534951), (7, 3029958), (9, 2356634), (14, 1514979), (18, 1178317), (21, 1009986), (42, 504993), (63, 336662), (126, 168331)]