18578216

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{269}}^1$

素因数の和:461

約数の個数: 32

約数和(自身を含む): 35721000

約数和(自身を除く): 17142784

約数列:

[1, 2, 4, 8, 89, 97, 178, 194, 269, 356, 388, 538, 712, 776, 1076, 2152, 8633, 17266, 23941, 26093, 34532, 47882, 52186, 69064, 95764, 104372, 191528, 208744, 2322277, 4644554, 9289108, 18578216]

約数ペア:

[(1, 18578216), (2, 9289108), (4, 4644554), (8, 2322277), (89, 208744), (97, 191528), (178, 104372), (194, 95764), (269, 69064), (356, 52186), (388, 47882), (538, 34532), (712, 26093), (776, 23941), (1076, 17266), (2152, 8633)]