21322864

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{70141}}^1$

素因数の和:70168

約数の個数: 20

約数和(自身を含む): 43488040

約数和(自身を除く): 22165176

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 70141, 140282, 280564, 561128, 1122256, 1332679, 2665358, 5330716, 10661432, 21322864]

約数ペア:

[(1, 21322864), (2, 10661432), (4, 5330716), (8, 2665358), (16, 1332679), (19, 1122256), (38, 561128), (76, 280564), (152, 140282), (304, 70141)]