19581764

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{859}}^1$

素因数の和:1043

約数の個数: 24

約数和(自身を含む): 35397600

約数和(自身を除く): 15815836

約数列:

[1, 2, 4, 41, 82, 139, 164, 278, 556, 859, 1718, 3436, 5699, 11398, 22796, 35219, 70438, 119401, 140876, 238802, 477604, 4895441, 9790882, 19581764]

約数ペア:

[(1, 19581764), (2, 9790882), (4, 4895441), (41, 477604), (82, 238802), (139, 140876), (164, 119401), (278, 70438), (556, 35219), (859, 22796), (1718, 11398), (3436, 5699)]