21870086

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{25609}}^1$

素因数の和:25679

約数の個数: 16

約数和(自身を含む): 38107680

約数和(自身を除く): 16237594

約数列:

[1, 2, 7, 14, 61, 122, 427, 854, 25609, 51218, 179263, 358526, 1562149, 3124298, 10935043, 21870086]

約数ペア:

[(1, 21870086), (2, 10935043), (7, 3124298), (14, 1562149), (61, 358526), (122, 179263), (427, 51218), (854, 25609)]