19987926

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{475903}}^1$

素因数の和:475915

約数の個数: 16

約数和(自身を含む): 45686784

約数和(自身を除く): 25698858

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 475903, 951806, 1427709, 2855418, 3331321, 6662642, 9993963, 19987926]

約数ペア:

[(1, 19987926), (2, 9993963), (3, 6662642), (6, 3331321), (7, 2855418), (14, 1427709), (21, 951806), (42, 475903)]