18267428

素因数分解:

$2^2\times {\mathrm{23}}^2\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:236

約数の個数: 36

約数和(自身を含む): 34142220

約数和(自身を除く): 15874792

約数列:

[1, 2, 4, 23, 46, 89, 92, 97, 178, 194, 356, 388, 529, 1058, 2047, 2116, 2231, 4094, 4462, 8188, 8633, 8924, 17266, 34532, 47081, 51313, 94162, 102626, 188324, 198559, 205252, 397118, 794236, 4566857, 9133714, 18267428]

約数ペア:

[(1, 18267428), (2, 9133714), (4, 4566857), (23, 794236), (46, 397118), (89, 205252), (92, 198559), (97, 188324), (178, 102626), (194, 94162), (356, 51313), (388, 47081), (529, 34532), (1058, 17266), (2047, 8924), (2116, 8633), (2231, 8188), (4094, 4462)]