21375954

素因数分解:

$2^1\times 3^3\times {\mathrm{395851}}^1$

素因数の和:395862

約数の個数: 16

約数和(自身を含む): 47502240

約数和(自身を除く): 26126286

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 395851, 791702, 1187553, 2375106, 3562659, 7125318, 10687977, 21375954]

約数ペア:

[(1, 21375954), (2, 10687977), (3, 7125318), (6, 3562659), (9, 2375106), (18, 1187553), (27, 791702), (54, 395851)]