21168248

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{541}}^1$

素因数の和:687

約数の個数: 32

約数和(自身を含む): 40910160

約数和(自身を除く): 19741912

約数列:

[1, 2, 4, 8, 67, 73, 134, 146, 268, 292, 536, 541, 584, 1082, 2164, 4328, 4891, 9782, 19564, 36247, 39128, 39493, 72494, 78986, 144988, 157972, 289976, 315944, 2646031, 5292062, 10584124, 21168248]

約数ペア:

[(1, 21168248), (2, 10584124), (4, 5292062), (8, 2646031), (67, 315944), (73, 289976), (134, 157972), (146, 144988), (268, 78986), (292, 72494), (536, 39493), (541, 39128), (584, 36247), (1082, 19564), (2164, 9782), (4328, 4891)]