21782354384

素因数分解:

$2^4\times 7^1\times {\mathrm{194485307}}^1$

素因数の和:194485322

約数の個数: 20

約数和(自身を含む): 48232356384

約数和(自身を除く): 26450002000

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 194485307, 388970614, 777941228, 1361397149, 1555882456, 2722794298, 3111764912, 5445588596, 10891177192, 21782354384]

約数ペア:

[(1, 21782354384), (2, 10891177192), (4, 5445588596), (7, 3111764912), (8, 2722794298), (14, 1555882456), (16, 1361397149), (28, 777941228), (56, 388970614), (112, 194485307)]