21676912

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{277}}^1$

素因数の和:425

約数の個数: 40

約数和(自身を含む): 43365776

約数和(自身を除く): 21688864

約数列:

[1, 2, 4, 8, 16, 67, 73, 134, 146, 268, 277, 292, 536, 554, 584, 1072, 1108, 1168, 2216, 4432, 4891, 9782, 18559, 19564, 20221, 37118, 39128, 40442, 74236, 78256, 80884, 148472, 161768, 296944, 323536, 1354807, 2709614, 5419228, 10838456, 21676912]

約数ペア:

[(1, 21676912), (2, 10838456), (4, 5419228), (8, 2709614), (16, 1354807), (67, 323536), (73, 296944), (134, 161768), (146, 148472), (268, 80884), (277, 78256), (292, 74236), (536, 40442), (554, 39128), (584, 37118), (1072, 20221), (1108, 19564), (1168, 18559), (2216, 9782), (4432, 4891)]