18958456

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{2221}}^1$

素因数の和:2335

約数の個数: 32

約数和(自身を含む): 39196080

約数和(自身を除く): 20237624

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 97, 194, 388, 776, 1067, 2134, 2221, 4268, 4442, 8536, 8884, 17768, 24431, 48862, 97724, 195448, 215437, 430874, 861748, 1723496, 2369807, 4739614, 9479228, 18958456]

約数ペア:

[(1, 18958456), (2, 9479228), (4, 4739614), (8, 2369807), (11, 1723496), (22, 861748), (44, 430874), (88, 215437), (97, 195448), (194, 97724), (388, 48862), (776, 24431), (1067, 17768), (2134, 8884), (2221, 8536), (4268, 4442)]