18994642

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{211}}^1$

素因数の和:358

約数の個数: 32

約数和(自身を含む): 31749120

約数和(自身を除く): 12754478

約数列:

[1, 2, 19, 23, 38, 46, 103, 206, 211, 422, 437, 874, 1957, 2369, 3914, 4009, 4738, 4853, 8018, 9706, 21733, 43466, 45011, 90022, 92207, 184414, 412927, 499859, 825854, 999718, 9497321, 18994642]

約数ペア:

[(1, 18994642), (2, 9497321), (19, 999718), (23, 825854), (38, 499859), (46, 412927), (103, 184414), (206, 92207), (211, 90022), (422, 45011), (437, 43466), (874, 21733), (1957, 9706), (2369, 8018), (3914, 4853), (4009, 4738)]