21905072

素因数分解:

$2^4\times 7^1\times {\mathrm{195581}}^1$

素因数の和:195596

約数の個数: 20

約数和(自身を含む): 48504336

約数和(自身を除く): 26599264

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 195581, 391162, 782324, 1369067, 1564648, 2738134, 3129296, 5476268, 10952536, 21905072]

約数ペア:

[(1, 21905072), (2, 10952536), (4, 5476268), (7, 3129296), (8, 2738134), (14, 1564648), (16, 1369067), (28, 782324), (56, 391162), (112, 195581)]