21930256

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{72139}}^1$

素因数の和:72166

約数の個数: 20

約数和(自身を含む): 44726800

約数和(自身を除く): 22796544

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 72139, 144278, 288556, 577112, 1154224, 1370641, 2741282, 5482564, 10965128, 21930256]

約数ペア:

[(1, 21930256), (2, 10965128), (4, 5482564), (8, 2741282), (16, 1370641), (19, 1154224), (38, 577112), (76, 288556), (152, 144278), (304, 72139)]