19710928

素因数分解:

$2^4\times {\mathrm{173}}^1\times {\mathrm{7121}}^1$

素因数の和:7302

約数の個数: 20

約数和(自身を含む): 38416068

約数和(自身を除く): 18705140

約数列:

[1, 2, 4, 8, 16, 173, 346, 692, 1384, 2768, 7121, 14242, 28484, 56968, 113936, 1231933, 2463866, 4927732, 9855464, 19710928]

約数ペア:

[(1, 19710928), (2, 9855464), (4, 4927732), (8, 2463866), (16, 1231933), (173, 113936), (346, 56968), (692, 28484), (1384, 14242), (2768, 7121)]