21389580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{118831}}^1$

素因数の和:118846

約数の個数: 36

約数和(自身を含む): 64882272

約数和(自身を除く): 43492692

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 118831, 237662, 356493, 475324, 594155, 712986, 1069479, 1188310, 1425972, 1782465, 2138958, 2376620, 3564930, 4277916, 5347395, 7129860, 10694790, 21389580]

約数ペア:

[(1, 21389580), (2, 10694790), (3, 7129860), (4, 5347395), (5, 4277916), (6, 3564930), (9, 2376620), (10, 2138958), (12, 1782465), (15, 1425972), (18, 1188310), (20, 1069479), (30, 712986), (36, 594155), (45, 475324), (60, 356493), (90, 237662), (180, 118831)]