21945232

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{80681}}^1$

素因数の和:80706

約数の個数: 20

約数和(自身を含む): 45020556

約数和(自身を除く): 23075324

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 80681, 161362, 322724, 645448, 1290896, 1371577, 2743154, 5486308, 10972616, 21945232]

約数ペア:

[(1, 21945232), (2, 10972616), (4, 5486308), (8, 2743154), (16, 1371577), (17, 1290896), (34, 645448), (68, 322724), (136, 161362), (272, 80681)]