19874128

素因数分解:

$2^4\times {\mathrm{409}}^1\times {\mathrm{3037}}^1$

素因数の和:3454

約数の個数: 20

約数和(自身を含む): 38612980

約数和(自身を除く): 18738852

約数列:

[1, 2, 4, 8, 16, 409, 818, 1636, 3037, 3272, 6074, 6544, 12148, 24296, 48592, 1242133, 2484266, 4968532, 9937064, 19874128]

約数ペア:

[(1, 19874128), (2, 9937064), (4, 4968532), (8, 2484266), (16, 1242133), (409, 48592), (818, 24296), (1636, 12148), (3037, 6544), (3272, 6074)]