21000985396

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{3527}}^1\times {\mathrm{36307}}^1$

素因数の和:39879

約数の個数: 24

約数和(自身を含む): 37659819456

約数和(自身を除く): 16658834060

約数列:

[1, 2, 4, 41, 82, 164, 3527, 7054, 14108, 36307, 72614, 144607, 145228, 289214, 578428, 1488587, 2977174, 5954348, 128054789, 256109578, 512219156, 5250246349, 10500492698, 21000985396]

約数ペア:

[(1, 21000985396), (2, 10500492698), (4, 5250246349), (41, 512219156), (82, 256109578), (164, 128054789), (3527, 5954348), (7054, 2977174), (14108, 1488587), (36307, 578428), (72614, 289214), (144607, 145228)]