21710410

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{15619}}^1$

素因数の和:15765

約数の個数: 16

約数和(自身を含む): 39362400

約数和(自身を除く): 17651990

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 15619, 31238, 78095, 156190, 2171041, 4342082, 10855205, 21710410]

約数ペア:

[(1, 21710410), (2, 10855205), (5, 4342082), (10, 2171041), (139, 156190), (278, 78095), (695, 31238), (1390, 15619)]