16869980

素因数分解:

$2^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{1619}}^1$

素因数の和:2149

約数の個数: 24

約数和(自身を含む): 35516880

約数和(自身を除く): 18646900

約数列:

[1, 2, 4, 5, 10, 20, 521, 1042, 1619, 2084, 2605, 3238, 5210, 6476, 8095, 10420, 16190, 32380, 843499, 1686998, 3373996, 4217495, 8434990, 16869980]

約数ペア:

[(1, 16869980), (2, 8434990), (4, 4217495), (5, 3373996), (10, 1686998), (20, 843499), (521, 32380), (1042, 16190), (1619, 10420), (2084, 8095), (2605, 6476), (3238, 5210)]